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Finding the Fourth Proportional to 22,385.70, 33,590.70 and 9,239.40

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Solution

The fourth proportional to 22,385.70, 33,590.70 and 9,239.40 is: 13,864.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,385.70 : 33,590.70 = 9,239.40 : x
  2. Step 2: Convert to fraction form
    22,385.70/33,590.70 = 9,239.40/x
  3. Step 3: Cross multiply
    22,385.70x = 33,590.70 × 9,239.40
  4. Step 4: Simplify right side
    22,385.70x = 310,357,913.58
  5. Step 5: Solve for x
    x = 310,357,913.58/22,385.70
  6. Step 6: Final answer
    x = 13,864.11

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.