Home / 23,154.90-34,718.94-20,387.13

Finding the Fourth Proportional to 23,154.90, 34,718.94 and 20,387.13

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Solution

The fourth proportional to 23,154.90, 34,718.94 and 20,387.13 is: 30,568.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,154.90 : 34,718.94 = 20,387.13 : x
  2. Step 2: Convert to fraction form
    23,154.90/34,718.94 = 20,387.13/x
  3. Step 3: Cross multiply
    23,154.90x = 34,718.94 × 20,387.13
  4. Step 4: Simplify right side
    23,154.90x = 707,819,543.24
  5. Step 5: Solve for x
    x = 707,819,543.24/23,154.90
  6. Step 6: Final answer
    x = 30,568.89

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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.