Home / 23,432.90-32,399.61-20,480.45

Finding the Fourth Proportional to 23,432.90, 32,399.61 and 20,480.45

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Solution

The fourth proportional to 23,432.90, 32,399.61 and 20,480.45 is: 28,317.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,432.90 : 32,399.61 = 20,480.45 : x
  2. Step 2: Convert to fraction form
    23,432.90/32,399.61 = 20,480.45/x
  3. Step 3: Cross multiply
    23,432.90x = 32,399.61 × 20,480.45
  4. Step 4: Simplify right side
    23,432.90x = 663,558,592.62
  5. Step 5: Solve for x
    x = 663,558,592.62/23,432.90
  6. Step 6: Final answer
    x = 28,317.39

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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.