Home / 39,382.08-59,076.32-11,680

Finding the Fourth Proportional to 39,382.08, 59,076.32 and 11,680

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Solution

The fourth proportional to 39,382.08, 59,076.32 and 11,680 is: 17,520.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,382.08 : 59,076.32 = 11,680 : x
  2. Step 2: Convert to fraction form
    39,382.08/59,076.32 = 11,680/x
  3. Step 3: Cross multiply
    39,382.08x = 59,076.32 × 11,680
  4. Step 4: Simplify right side
    39,382.08x = 690,011,417.60
  5. Step 5: Solve for x
    x = 690,011,417.60/39,382.08
  6. Step 6: Final answer
    x = 17,520.95

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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.