Home / 39,624.20-54,681.18-21,719.96

Finding the Fourth Proportional to 39,624.20, 54,681.18 and 21,719.96

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Solution

The fourth proportional to 39,624.20, 54,681.18 and 21,719.96 is: 29,973.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,624.20 : 54,681.18 = 21,719.96 : x
  2. Step 2: Convert to fraction form
    39,624.20/54,681.18 = 21,719.96/x
  3. Step 3: Cross multiply
    39,624.20x = 54,681.18 × 21,719.96
  4. Step 4: Simplify right side
    39,624.20x = 1,187,673,042.35
  5. Step 5: Solve for x
    x = 1,187,673,042.35/39,624.20
  6. Step 6: Final answer
    x = 29,973.43

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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.