Home / 42,319.83-63,434.99-15,648.68

Finding the Fourth Proportional to 42,319.83, 63,434.99 and 15,648.68

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Solution

The fourth proportional to 42,319.83, 63,434.99 and 15,648.68 is: 23,456.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,319.83 : 63,434.99 = 15,648.68 : x
  2. Step 2: Convert to fraction form
    42,319.83/63,434.99 = 15,648.68/x
  3. Step 3: Cross multiply
    42,319.83x = 63,434.99 × 15,648.68
  4. Step 4: Simplify right side
    42,319.83x = 992,673,857.79
  5. Step 5: Solve for x
    x = 992,673,857.79/42,319.83
  6. Step 6: Final answer
    x = 23,456.47

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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.