Home / 29,223.60-40,285.08-20,713.20

Finding the Fourth Proportional to 29,223.60, 40,285.08 and 20,713.20

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Solution

The fourth proportional to 29,223.60, 40,285.08 and 20,713.20 is: 28,553.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,223.60 : 40,285.08 = 20,713.20 : x
  2. Step 2: Convert to fraction form
    29,223.60/40,285.08 = 20,713.20/x
  3. Step 3: Cross multiply
    29,223.60x = 40,285.08 × 20,713.20
  4. Step 4: Simplify right side
    29,223.60x = 834,432,919.06
  5. Step 5: Solve for x
    x = 834,432,919.06/29,223.60
  6. Step 6: Final answer
    x = 28,553.39

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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.