Home / 28,585.25-42,892.50-13,609.31

Finding the Fourth Proportional to 28,585.25, 42,892.50 and 13,609.31

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Solution

The fourth proportional to 28,585.25, 42,892.50 and 13,609.31 is: 20,420.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,585.25 : 42,892.50 = 13,609.31 : x
  2. Step 2: Convert to fraction form
    28,585.25/42,892.50 = 13,609.31/x
  3. Step 3: Cross multiply
    28,585.25x = 42,892.50 × 13,609.31
  4. Step 4: Simplify right side
    28,585.25x = 583,737,114.71
  5. Step 5: Solve for x
    x = 583,737,114.71/28,585.25
  6. Step 6: Final answer
    x = 20,420.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.