Home / 22,977.28-31,689.20-19,409.76

Finding the Fourth Proportional to 22,977.28, 31,689.20 and 19,409.76

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Solution

The fourth proportional to 22,977.28, 31,689.20 and 19,409.76 is: 26,769.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,977.28 : 31,689.20 = 19,409.76 : x
  2. Step 2: Convert to fraction form
    22,977.28/31,689.20 = 19,409.76/x
  3. Step 3: Cross multiply
    22,977.28x = 31,689.20 × 19,409.76
  4. Step 4: Simplify right side
    22,977.28x = 615,079,766.59
  5. Step 5: Solve for x
    x = 615,079,766.59/22,977.28
  6. Step 6: Final answer
    x = 26,769.04

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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.