Home / 38,146.71-52,645.55-21,156.27

Finding the Fourth Proportional to 38,146.71, 52,645.55 and 21,156.27

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Solution

The fourth proportional to 38,146.71, 52,645.55 and 21,156.27 is: 29,197.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,146.71 : 52,645.55 = 21,156.27 : x
  2. Step 2: Convert to fraction form
    38,146.71/52,645.55 = 21,156.27/x
  3. Step 3: Cross multiply
    38,146.71x = 52,645.55 × 21,156.27
  4. Step 4: Simplify right side
    38,146.71x = 1,113,783,470.10
  5. Step 5: Solve for x
    x = 1,113,783,470.10/38,146.71
  6. Step 6: Final answer
    x = 29,197.37

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Half scale
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Double scale
Find fourth proportional to 38,147.71, 52,646.93 and 21,157.27
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.