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Finding the Fourth Proportional to 20,304.52, 30,449.10 and 8,623.24

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Solution

The fourth proportional to 20,304.52, 30,449.10 and 8,623.24 is: 12,931.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,304.52 : 30,449.10 = 8,623.24 : x
  2. Step 2: Convert to fraction form
    20,304.52/30,449.10 = 8,623.24/x
  3. Step 3: Cross multiply
    20,304.52x = 30,449.10 × 8,623.24
  4. Step 4: Simplify right side
    20,304.52x = 262,569,897.08
  5. Step 5: Solve for x
    x = 262,569,897.08/20,304.52
  6. Step 6: Final answer
    x = 12,931.60

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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.