Home / 42,029.68-63,044.24-12,447.68

Finding the Fourth Proportional to 42,029.68, 63,044.24 and 12,447.68

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Solution

The fourth proportional to 42,029.68, 63,044.24 and 12,447.68 is: 18,671.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,029.68 : 63,044.24 = 12,447.68 : x
  2. Step 2: Convert to fraction form
    42,029.68/63,044.24 = 12,447.68/x
  3. Step 3: Cross multiply
    42,029.68x = 63,044.24 × 12,447.68
  4. Step 4: Simplify right side
    42,029.68x = 784,754,525.36
  5. Step 5: Solve for x
    x = 784,754,525.36/42,029.68
  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.