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Finding the Fourth Proportional to 22,279.60, 33,403.20 and 9,125.20

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Solution

The fourth proportional to 22,279.60, 33,403.20 and 9,125.20 is: 13,681.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,279.60 : 33,403.20 = 9,125.20 : x
  2. Step 2: Convert to fraction form
    22,279.60/33,403.20 = 9,125.20/x
  3. Step 3: Cross multiply
    22,279.60x = 33,403.20 × 9,125.20
  4. Step 4: Simplify right side
    22,279.60x = 304,810,880.64
  5. Step 5: Solve for x
    x = 304,810,880.64/22,279.60
  6. Step 6: Final answer
    x = 13,681.16

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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.