Home / 27,727.28-38,263.20-15,151.76

Finding the Fourth Proportional to 27,727.28, 38,263.20 and 15,151.76

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Solution

The fourth proportional to 27,727.28, 38,263.20 and 15,151.76 is: 20,909.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,727.28 : 38,263.20 = 15,151.76 : x
  2. Step 2: Convert to fraction form
    27,727.28/38,263.20 = 15,151.76/x
  3. Step 3: Cross multiply
    27,727.28x = 38,263.20 × 15,151.76
  4. Step 4: Simplify right side
    27,727.28x = 579,754,823.23
  5. Step 5: Solve for x
    x = 579,754,823.23/27,727.28
  6. Step 6: Final answer
    x = 20,909.18

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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.