Home / 27,897-38,499.66-15,964.20

Finding the Fourth Proportional to 27,897, 38,499.66 and 15,964.20

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Solution

The fourth proportional to 27,897, 38,499.66 and 15,964.20 is: 22,031.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,897 : 38,499.66 = 15,964.20 : x
  2. Step 2: Convert to fraction form
    27,897/38,499.66 = 15,964.20/x
  3. Step 3: Cross multiply
    27,897x = 38,499.66 × 15,964.20
  4. Step 4: Simplify right side
    27,897x = 614,616,272.17
  5. Step 5: Solve for x
    x = 614,616,272.17/27,897
  6. Step 6: Final answer
    x = 22,031.63

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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.