Home / 27,666.61-38,177.36-15,727.61

Finding the Fourth Proportional to 27,666.61, 38,177.36 and 15,727.61

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Solution

The fourth proportional to 27,666.61, 38,177.36 and 15,727.61 is: 21,702.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,666.61 : 38,177.36 = 15,727.61 : x
  2. Step 2: Convert to fraction form
    27,666.61/38,177.36 = 15,727.61/x
  3. Step 3: Cross multiply
    27,666.61x = 38,177.36 × 15,727.61
  4. Step 4: Simplify right side
    27,666.61x = 600,438,645.71
  5. Step 5: Solve for x
    x = 600,438,645.71/27,666.61
  6. Step 6: Final answer
    x = 21,702.65

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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.