Home / 19,472.20-26,872.38-10,977.70

Finding the Fourth Proportional to 19,472.20, 26,872.38 and 10,977.70

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Solution

The fourth proportional to 19,472.20, 26,872.38 and 10,977.70 is: 15,149.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,472.20 : 26,872.38 = 10,977.70 : x
  2. Step 2: Convert to fraction form
    19,472.20/26,872.38 = 10,977.70/x
  3. Step 3: Cross multiply
    19,472.20x = 26,872.38 × 10,977.70
  4. Step 4: Simplify right side
    19,472.20x = 294,996,925.93
  5. Step 5: Solve for x
    x = 294,996,925.93/19,472.20
  6. Step 6: Final answer
    x = 15,149.65

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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.