Home / 37,882.04-52,278.86-21,115

Finding the Fourth Proportional to 37,882.04, 52,278.86 and 21,115

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Solution

The fourth proportional to 37,882.04, 52,278.86 and 21,115 is: 29,139.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,882.04 : 52,278.86 = 21,115 : x
  2. Step 2: Convert to fraction form
    37,882.04/52,278.86 = 21,115/x
  3. Step 3: Cross multiply
    37,882.04x = 52,278.86 × 21,115
  4. Step 4: Simplify right side
    37,882.04x = 1,103,868,128.90
  5. Step 5: Solve for x
    x = 1,103,868,128.90/37,882.04
  6. Step 6: Final answer
    x = 29,139.62

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1.5x scale

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.