Home / 27,721.47-38,255.61-14,974.66

Finding the Fourth Proportional to 27,721.47, 38,255.61 and 14,974.66

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Solution

The fourth proportional to 27,721.47, 38,255.61 and 14,974.66 is: 20,665.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,721.47 : 38,255.61 = 14,974.66 : x
  2. Step 2: Convert to fraction form
    27,721.47/38,255.61 = 14,974.66/x
  3. Step 3: Cross multiply
    27,721.47x = 38,255.61 × 14,974.66
  4. Step 4: Simplify right side
    27,721.47x = 572,864,752.84
  5. Step 5: Solve for x
    x = 572,864,752.84/27,721.47
  6. Step 6: Final answer
    x = 20,665.02

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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.