Home / 22,432.32-33,611.28-13,640.64

Finding the Fourth Proportional to 22,432.32, 33,611.28 and 13,640.64

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Solution

The fourth proportional to 22,432.32, 33,611.28 and 13,640.64 is: 20,438.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,432.32 : 33,611.28 = 13,640.64 : x
  2. Step 2: Convert to fraction form
    22,432.32/33,611.28 = 13,640.64/x
  3. Step 3: Cross multiply
    22,432.32x = 33,611.28 × 13,640.64
  4. Step 4: Simplify right side
    22,432.32x = 458,479,370.42
  5. Step 5: Solve for x
    x = 458,479,370.42/22,432.32
  6. Step 6: Final answer
    x = 20,438.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.