Home / 28,332.96-39,098.96-15,757.60

Finding the Fourth Proportional to 28,332.96, 39,098.96 and 15,757.60

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Solution

The fourth proportional to 28,332.96, 39,098.96 and 15,757.60 is: 21,745.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,332.96 : 39,098.96 = 15,757.60 : x
  2. Step 2: Convert to fraction form
    28,332.96/39,098.96 = 15,757.60/x
  3. Step 3: Cross multiply
    28,332.96x = 39,098.96 × 15,757.60
  4. Step 4: Simplify right side
    28,332.96x = 616,105,772.10
  5. Step 5: Solve for x
    x = 616,105,772.10/28,332.96
  6. Step 6: Final answer
    x = 21,745.20

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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.