Home / 20,088.38-27,710.42-12,531.08

Finding the Fourth Proportional to 20,088.38, 27,710.42 and 12,531.08

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Solution

The fourth proportional to 20,088.38, 27,710.42 and 12,531.08 is: 17,285.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,088.38 : 27,710.42 = 12,531.08 : x
  2. Step 2: Convert to fraction form
    20,088.38/27,710.42 = 12,531.08/x
  3. Step 3: Cross multiply
    20,088.38x = 27,710.42 × 12,531.08
  4. Step 4: Simplify right side
    20,088.38x = 347,241,288.65
  5. Step 5: Solve for x
    x = 347,241,288.65/20,088.38
  6. Step 6: Final answer
    x = 17,285.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.