Home / 27,717.91-38,248.95-15,142.66

Finding the Fourth Proportional to 27,717.91, 38,248.95 and 15,142.66

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Solution

The fourth proportional to 27,717.91, 38,248.95 and 15,142.66 is: 20,895.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,717.91 : 38,248.95 = 15,142.66 : x
  2. Step 2: Convert to fraction form
    27,717.91/38,248.95 = 15,142.66/x
  3. Step 3: Cross multiply
    27,717.91x = 38,248.95 × 15,142.66
  4. Step 4: Simplify right side
    27,717.91x = 579,190,845.21
  5. Step 5: Solve for x
    x = 579,190,845.21/27,717.91
  6. Step 6: Final answer
    x = 20,895.91

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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.