Home / 21,240.68-31,850.04-9,543.92

Finding the Fourth Proportional to 21,240.68, 31,850.04 and 9,543.92

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Solution

The fourth proportional to 21,240.68, 31,850.04 and 9,543.92 is: 14,310.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,240.68 : 31,850.04 = 9,543.92 : x
  2. Step 2: Convert to fraction form
    21,240.68/31,850.04 = 9,543.92/x
  3. Step 3: Cross multiply
    21,240.68x = 31,850.04 × 9,543.92
  4. Step 4: Simplify right side
    21,240.68x = 303,974,233.76
  5. Step 5: Solve for x
    x = 303,974,233.76/21,240.68
  6. Step 6: Final answer
    x = 14,310.95

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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.