Home / 27,700.31-38,227.82-15,764.76

Finding the Fourth Proportional to 27,700.31, 38,227.82 and 15,764.76

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Solution

The fourth proportional to 27,700.31, 38,227.82 and 15,764.76 is: 21,756.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,700.31 : 38,227.82 = 15,764.76 : x
  2. Step 2: Convert to fraction form
    27,700.31/38,227.82 = 15,764.76/x
  3. Step 3: Cross multiply
    27,700.31x = 38,227.82 × 15,764.76
  4. Step 4: Simplify right side
    27,700.31x = 602,652,328.80
  5. Step 5: Solve for x
    x = 602,652,328.80/27,700.31
  6. Step 6: Final answer
    x = 21,756.16

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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.