Home / 39,182.76-58,761.72-12,881.40

Finding the Fourth Proportional to 39,182.76, 58,761.72 and 12,881.40

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Solution

The fourth proportional to 39,182.76, 58,761.72 and 12,881.40 is: 19,318.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,182.76 : 58,761.72 = 12,881.40 : x
  2. Step 2: Convert to fraction form
    39,182.76/58,761.72 = 12,881.40/x
  3. Step 3: Cross multiply
    39,182.76x = 58,761.72 × 12,881.40
  4. Step 4: Simplify right side
    39,182.76x = 756,933,220.01
  5. Step 5: Solve for x
    x = 756,933,220.01/39,182.76
  6. Step 6: Final answer
    x = 19,318.02

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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.