Home / 28,149.79-42,153.25-16,898.13

Finding the Fourth Proportional to 28,149.79, 42,153.25 and 16,898.13

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Solution

The fourth proportional to 28,149.79, 42,153.25 and 16,898.13 is: 25,304.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,149.79 : 42,153.25 = 16,898.13 : x
  2. Step 2: Convert to fraction form
    28,149.79/42,153.25 = 16,898.13/x
  3. Step 3: Cross multiply
    28,149.79x = 42,153.25 × 16,898.13
  4. Step 4: Simplify right side
    28,149.79x = 712,311,098.42
  5. Step 5: Solve for x
    x = 712,311,098.42/28,149.79
  6. Step 6: Final answer
    x = 25,304.31

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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.