Home / 36,991.28-55,470.44-10,689.78

Finding the Fourth Proportional to 36,991.28, 55,470.44 and 10,689.78

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Solution

The fourth proportional to 36,991.28, 55,470.44 and 10,689.78 is: 16,029.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,991.28 : 55,470.44 = 10,689.78 : x
  2. Step 2: Convert to fraction form
    36,991.28/55,470.44 = 10,689.78/x
  3. Step 3: Cross multiply
    36,991.28x = 55,470.44 × 10,689.78
  4. Step 4: Simplify right side
    36,991.28x = 592,966,800.10
  5. Step 5: Solve for x
    x = 592,966,800.10/36,991.28
  6. Step 6: Final answer
    x = 16,029.91

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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.