Home / 28,516.80-39,354.96-15,941.52

Finding the Fourth Proportional to 28,516.80, 39,354.96 and 15,941.52

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Solution

The fourth proportional to 28,516.80, 39,354.96 and 15,941.52 is: 22,000.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,516.80 : 39,354.96 = 15,941.52 : x
  2. Step 2: Convert to fraction form
    28,516.80/39,354.96 = 15,941.52/x
  3. Step 3: Cross multiply
    28,516.80x = 39,354.96 × 15,941.52
  4. Step 4: Simplify right side
    28,516.80x = 627,377,881.94
  5. Step 5: Solve for x
    x = 627,377,881.94/28,516.80
  6. Step 6: Final answer
    x = 22,000.29

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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.