Home / 42,038.41-63,046.85-12,449.33

Finding the Fourth Proportional to 42,038.41, 63,046.85 and 12,449.33

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Solution

The fourth proportional to 42,038.41, 63,046.85 and 12,449.33 is: 18,670.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,038.41 : 63,046.85 = 12,449.33 : x
  2. Step 2: Convert to fraction form
    42,038.41/63,046.85 = 12,449.33/x
  3. Step 3: Cross multiply
    42,038.41x = 63,046.85 × 12,449.33
  4. Step 4: Simplify right side
    42,038.41x = 784,891,041.11
  5. Step 5: Solve for x
    x = 784,891,041.11/42,038.41
  6. Step 6: Final answer
    x = 18,670.81

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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.