Home / 27,691.15-38,214.19-15,754.23

Finding the Fourth Proportional to 27,691.15, 38,214.19 and 15,754.23

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Solution

The fourth proportional to 27,691.15, 38,214.19 and 15,754.23 is: 21,741.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,691.15 : 38,214.19 = 15,754.23 : x
  2. Step 2: Convert to fraction form
    27,691.15/38,214.19 = 15,754.23/x
  3. Step 3: Cross multiply
    27,691.15x = 38,214.19 × 15,754.23
  4. Step 4: Simplify right side
    27,691.15x = 602,035,138.52
  5. Step 5: Solve for x
    x = 602,035,138.52/27,691.15
  6. Step 6: Final answer
    x = 21,741.07

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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.