Home / 36,820.31-50,803.20-21,711.78

Finding the Fourth Proportional to 36,820.31, 50,803.20 and 21,711.78

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Solution

The fourth proportional to 36,820.31, 50,803.20 and 21,711.78 is: 29,957.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,820.31 : 50,803.20 = 21,711.78 : x
  2. Step 2: Convert to fraction form
    36,820.31/50,803.20 = 21,711.78/x
  3. Step 3: Cross multiply
    36,820.31x = 50,803.20 × 21,711.78
  4. Step 4: Simplify right side
    36,820.31x = 1,103,027,901.70
  5. Step 5: Solve for x
    x = 1,103,027,901.70/36,820.31
  6. Step 6: Final answer
    x = 29,957.05

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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.