Home / 39,484.34-54,489.11-21,580.50

Finding the Fourth Proportional to 39,484.34, 54,489.11 and 21,580.50

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Solution

The fourth proportional to 39,484.34, 54,489.11 and 21,580.50 is: 29,781.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,484.34 : 54,489.11 = 21,580.50 : x
  2. Step 2: Convert to fraction form
    39,484.34/54,489.11 = 21,580.50/x
  3. Step 3: Cross multiply
    39,484.34x = 54,489.11 × 21,580.50
  4. Step 4: Simplify right side
    39,484.34x = 1,175,902,130.45
  5. Step 5: Solve for x
    x = 1,175,902,130.45/39,484.34
  6. Step 6: Final answer
    x = 29,781.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.