Home / 38,157.44-52,657.56-21,390.56

Finding the Fourth Proportional to 38,157.44, 52,657.56 and 21,390.56

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Solution

The fourth proportional to 38,157.44, 52,657.56 and 21,390.56 is: 29,519.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,157.44 : 52,657.56 = 21,390.56 : x
  2. Step 2: Convert to fraction form
    38,157.44/52,657.56 = 21,390.56/x
  3. Step 3: Cross multiply
    38,157.44x = 52,657.56 × 21,390.56
  4. Step 4: Simplify right side
    38,157.44x = 1,126,374,696.63
  5. Step 5: Solve for x
    x = 1,126,374,696.63/38,157.44
  6. Step 6: Final answer
    x = 29,519.14

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Half scale
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Double scale
Find fourth proportional to 38,158.44, 52,658.94 and 21,391.56
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.