Home / 42,029.64-63,044.28-12,447.66

Finding the Fourth Proportional to 42,029.64, 63,044.28 and 12,447.66

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Solution

The fourth proportional to 42,029.64, 63,044.28 and 12,447.66 is: 18,671.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,029.64 : 63,044.28 = 12,447.66 : x
  2. Step 2: Convert to fraction form
    42,029.64/63,044.28 = 12,447.66/x
  3. Step 3: Cross multiply
    42,029.64x = 63,044.28 × 12,447.66
  4. Step 4: Simplify right side
    42,029.64x = 784,753,762.38
  5. Step 5: Solve for x
    x = 784,753,762.38/42,029.64
  6. Step 6: Final answer
    x = 18,671.44

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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.