Home / 39,132.84-58,689.48-12,853.20

Finding the Fourth Proportional to 39,132.84, 58,689.48 and 12,853.20

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Solution

The fourth proportional to 39,132.84, 58,689.48 and 12,853.20 is: 19,276.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,132.84 : 58,689.48 = 12,853.20 : x
  2. Step 2: Convert to fraction form
    39,132.84/58,689.48 = 12,853.20/x
  3. Step 3: Cross multiply
    39,132.84x = 58,689.48 × 12,853.20
  4. Step 4: Simplify right side
    39,132.84x = 754,347,624.34
  5. Step 5: Solve for x
    x = 754,347,624.34/39,132.84
  6. Step 6: Final answer
    x = 19,276.59

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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.