Home / 39,247.65-54,162.78-21,343.70

Finding the Fourth Proportional to 39,247.65, 54,162.78 and 21,343.70

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Solution

The fourth proportional to 39,247.65, 54,162.78 and 21,343.70 is: 29,454.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,247.65 : 54,162.78 = 21,343.70 : x
  2. Step 2: Convert to fraction form
    39,247.65/54,162.78 = 21,343.70/x
  3. Step 3: Cross multiply
    39,247.65x = 54,162.78 × 21,343.70
  4. Step 4: Simplify right side
    39,247.65x = 1,156,034,127.49
  5. Step 5: Solve for x
    x = 1,156,034,127.49/39,247.65
  6. Step 6: Final answer
    x = 29,454.86

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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.