Home / 18,569.10-27,853.78-5,430.62

Finding the Fourth Proportional to 18,569.10, 27,853.78 and 5,430.62

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Solution

The fourth proportional to 18,569.10, 27,853.78 and 5,430.62 is: 8,145.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,569.10 : 27,853.78 = 5,430.62 : x
  2. Step 2: Convert to fraction form
    18,569.10/27,853.78 = 5,430.62/x
  3. Step 3: Cross multiply
    18,569.10x = 27,853.78 × 5,430.62
  4. Step 4: Simplify right side
    18,569.10x = 151,263,294.74
  5. Step 5: Solve for x
    x = 151,263,294.74/18,569.10
  6. Step 6: Final answer
    x = 8,145.97

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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.