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Finding the Fourth Proportional to 22,389.13, 33,585.89 and 8,345.89

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Solution

The fourth proportional to 22,389.13, 33,585.89 and 8,345.89 is: 12,519.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,389.13 : 33,585.89 = 8,345.89 : x
  2. Step 2: Convert to fraction form
    22,389.13/33,585.89 = 8,345.89/x
  3. Step 3: Cross multiply
    22,389.13x = 33,585.89 × 8,345.89
  4. Step 4: Simplify right side
    22,389.13x = 280,304,001.77
  5. Step 5: Solve for x
    x = 280,304,001.77/22,389.13
  6. Step 6: Final answer
    x = 12,519.64

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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.