Home / 28,107.89-42,149.45-14,957.13

Finding the Fourth Proportional to 28,107.89, 42,149.45 and 14,957.13

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Solution

The fourth proportional to 28,107.89, 42,149.45 and 14,957.13 is: 22,429.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,107.89 : 42,149.45 = 14,957.13 : x
  2. Step 2: Convert to fraction form
    28,107.89/42,149.45 = 14,957.13/x
  3. Step 3: Cross multiply
    28,107.89x = 42,149.45 × 14,957.13
  4. Step 4: Simplify right side
    28,107.89x = 630,434,728.29
  5. Step 5: Solve for x
    x = 630,434,728.29/28,107.89
  6. Step 6: Final answer
    x = 22,429.11

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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.