Home / 22,311.74-30,787.92-13,359.02

Finding the Fourth Proportional to 22,311.74, 30,787.92 and 13,359.02

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Solution

The fourth proportional to 22,311.74, 30,787.92 and 13,359.02 is: 18,434.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,311.74 : 30,787.92 = 13,359.02 : x
  2. Step 2: Convert to fraction form
    22,311.74/30,787.92 = 13,359.02/x
  3. Step 3: Cross multiply
    22,311.74x = 30,787.92 × 13,359.02
  4. Step 4: Simplify right side
    22,311.74x = 411,296,285.10
  5. Step 5: Solve for x
    x = 411,296,285.10/22,311.74
  6. Step 6: Final answer
    x = 18,434.07

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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.