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Finding the Fourth Proportional to 22,898.88, 34,348.80 and 12,488.64

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Solution

The fourth proportional to 22,898.88, 34,348.80 and 12,488.64 is: 18,733.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,898.88 : 34,348.80 = 12,488.64 : x
  2. Step 2: Convert to fraction form
    22,898.88/34,348.80 = 12,488.64/x
  3. Step 3: Cross multiply
    22,898.88x = 34,348.80 × 12,488.64
  4. Step 4: Simplify right side
    22,898.88x = 428,969,797.63
  5. Step 5: Solve for x
    x = 428,969,797.63/22,898.88
  6. Step 6: Final answer
    x = 18,733.22

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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.