Home / 28,497.06-39,346.56-18,431.19

Finding the Fourth Proportional to 28,497.06, 39,346.56 and 18,431.19

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Solution

The fourth proportional to 28,497.06, 39,346.56 and 18,431.19 is: 25,448.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,497.06 : 39,346.56 = 18,431.19 : x
  2. Step 2: Convert to fraction form
    28,497.06/39,346.56 = 18,431.19/x
  3. Step 3: Cross multiply
    28,497.06x = 39,346.56 × 18,431.19
  4. Step 4: Simplify right side
    28,497.06x = 725,203,923.21
  5. Step 5: Solve for x
    x = 725,203,923.21/28,497.06
  6. Step 6: Final answer
    x = 25,448.38

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Half scale
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Double scale
Find fourth proportional to 28,498.06, 39,347.94 and 18,432.19
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.