Home / 27,733.86-38,272.73-15,158.61

Finding the Fourth Proportional to 27,733.86, 38,272.73 and 15,158.61

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Solution

The fourth proportional to 27,733.86, 38,272.73 and 15,158.61 is: 20,918.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,733.86 : 38,272.73 = 15,158.61 : x
  2. Step 2: Convert to fraction form
    27,733.86/38,272.73 = 15,158.61/x
  3. Step 3: Cross multiply
    27,733.86x = 38,272.73 × 15,158.61
  4. Step 4: Simplify right side
    27,733.86x = 580,161,387.71
  5. Step 5: Solve for x
    x = 580,161,387.71/27,733.86
  6. Step 6: Final answer
    x = 20,918.88

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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.