Home / 42,393.90-63,600.98-12,812.03

Finding the Fourth Proportional to 42,393.90, 63,600.98 and 12,812.03

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Solution

The fourth proportional to 42,393.90, 63,600.98 and 12,812.03 is: 19,221.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,393.90 : 63,600.98 = 12,812.03 : x
  2. Step 2: Convert to fraction form
    42,393.90/63,600.98 = 12,812.03/x
  3. Step 3: Cross multiply
    42,393.90x = 63,600.98 × 12,812.03
  4. Step 4: Simplify right side
    42,393.90x = 814,857,663.79
  5. Step 5: Solve for x
    x = 814,857,663.79/42,393.90
  6. Step 6: Final answer
    x = 19,221.11

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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.