Home / 42,822-64,233.81-11,658.06

Finding the Fourth Proportional to 42,822, 64,233.81 and 11,658.06

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Solution

The fourth proportional to 42,822, 64,233.81 and 11,658.06 is: 17,487.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,822 : 64,233.81 = 11,658.06 : x
  2. Step 2: Convert to fraction form
    42,822/64,233.81 = 11,658.06/x
  3. Step 3: Cross multiply
    42,822x = 64,233.81 × 11,658.06
  4. Step 4: Simplify right side
    42,822x = 748,841,611.01
  5. Step 5: Solve for x
    x = 748,841,611.01/42,822
  6. Step 6: Final answer
    x = 17,487.31

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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.