Home / 27,972.80-41,959.76-10,439.13

Finding the Fourth Proportional to 27,972.80, 41,959.76 and 10,439.13

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Solution

The fourth proportional to 27,972.80, 41,959.76 and 10,439.13 is: 15,658.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,972.80 : 41,959.76 = 10,439.13 : x
  2. Step 2: Convert to fraction form
    27,972.80/41,959.76 = 10,439.13/x
  3. Step 3: Cross multiply
    27,972.80x = 41,959.76 × 10,439.13
  4. Step 4: Simplify right side
    27,972.80x = 438,023,389.41
  5. Step 5: Solve for x
    x = 438,023,389.41/27,972.80
  6. Step 6: Final answer
    x = 15,658.90

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1.5x scale

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.