Home / 22,311.18-30,787.16-13,358.45

Finding the Fourth Proportional to 22,311.18, 30,787.16 and 13,358.45

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Solution

The fourth proportional to 22,311.18, 30,787.16 and 13,358.45 is: 18,433.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,311.18 : 30,787.16 = 13,358.45 : x
  2. Step 2: Convert to fraction form
    22,311.18/30,787.16 = 13,358.45/x
  3. Step 3: Cross multiply
    22,311.18x = 30,787.16 × 13,358.45
  4. Step 4: Simplify right side
    22,311.18x = 411,268,747.68
  5. Step 5: Solve for x
    x = 411,268,747.68/22,311.18
  6. Step 6: Final answer
    x = 18,433.30

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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.