Home / 22,818.40-34,227.60-15,431.20

Finding the Fourth Proportional to 22,818.40, 34,227.60 and 15,431.20

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Solution

The fourth proportional to 22,818.40, 34,227.60 and 15,431.20 is: 23,146.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,818.40 : 34,227.60 = 15,431.20 : x
  2. Step 2: Convert to fraction form
    22,818.40/34,227.60 = 15,431.20/x
  3. Step 3: Cross multiply
    22,818.40x = 34,227.60 × 15,431.20
  4. Step 4: Simplify right side
    22,818.40x = 528,172,941.12
  5. Step 5: Solve for x
    x = 528,172,941.12/22,818.40
  6. Step 6: Final answer
    x = 23,146.80

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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.