Home / 27,691.17-38,215.24-15,756.22

Finding the Fourth Proportional to 27,691.17, 38,215.24 and 15,756.22

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Solution

The fourth proportional to 27,691.17, 38,215.24 and 15,756.22 is: 21,744.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,691.17 : 38,215.24 = 15,756.22 : x
  2. Step 2: Convert to fraction form
    27,691.17/38,215.24 = 15,756.22/x
  3. Step 3: Cross multiply
    27,691.17x = 38,215.24 × 15,756.22
  4. Step 4: Simplify right side
    27,691.17x = 602,127,825.80
  5. Step 5: Solve for x
    x = 602,127,825.80/27,691.17
  6. Step 6: Final answer
    x = 21,744.40

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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.