Home / 27,939.87-38,557.22-15,193.17

Finding the Fourth Proportional to 27,939.87, 38,557.22 and 15,193.17

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Solution

The fourth proportional to 27,939.87, 38,557.22 and 15,193.17 is: 20,966.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,939.87 : 38,557.22 = 15,193.17 : x
  2. Step 2: Convert to fraction form
    27,939.87/38,557.22 = 15,193.17/x
  3. Step 3: Cross multiply
    27,939.87x = 38,557.22 × 15,193.17
  4. Step 4: Simplify right side
    27,939.87x = 585,806,322.22
  5. Step 5: Solve for x
    x = 585,806,322.22/27,939.87
  6. Step 6: Final answer
    x = 20,966.68

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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.