Home / 16,454.81-22,691.05-12,431.54

Finding the Fourth Proportional to 16,454.81, 22,691.05 and 12,431.54

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Solution

The fourth proportional to 16,454.81, 22,691.05 and 12,431.54 is: 17,142.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,454.81 : 22,691.05 = 12,431.54 : x
  2. Step 2: Convert to fraction form
    16,454.81/22,691.05 = 12,431.54/x
  3. Step 3: Cross multiply
    16,454.81x = 22,691.05 × 12,431.54
  4. Step 4: Simplify right side
    16,454.81x = 282,084,551.18
  5. Step 5: Solve for x
    x = 282,084,551.18/16,454.81
  6. Step 6: Final answer
    x = 17,142.99

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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.