Home / 42,379.48-63,587.49-20,192.95

Finding the Fourth Proportional to 42,379.48, 63,587.49 and 20,192.95

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Solution

The fourth proportional to 42,379.48, 63,587.49 and 20,192.95 is: 30,298.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,379.48 : 63,587.49 = 20,192.95 : x
  2. Step 2: Convert to fraction form
    42,379.48/63,587.49 = 20,192.95/x
  3. Step 3: Cross multiply
    42,379.48x = 63,587.49 × 20,192.95
  4. Step 4: Simplify right side
    42,379.48x = 1,284,019,006.20
  5. Step 5: Solve for x
    x = 1,284,019,006.20/42,379.48
  6. Step 6: Final answer
    x = 30,298.13

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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.