Home / 27,581.54-38,062.89-15,644.61

Finding the Fourth Proportional to 27,581.54, 38,062.89 and 15,644.61

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Solution

The fourth proportional to 27,581.54, 38,062.89 and 15,644.61 is: 21,589.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,581.54 : 38,062.89 = 15,644.61 : x
  2. Step 2: Convert to fraction form
    27,581.54/38,062.89 = 15,644.61/x
  3. Step 3: Cross multiply
    27,581.54x = 38,062.89 × 15,644.61
  4. Step 4: Simplify right side
    27,581.54x = 595,479,069.52
  5. Step 5: Solve for x
    x = 595,479,069.52/27,581.54
  6. Step 6: Final answer
    x = 21,589.77

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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.