Home / 20,738.73-31,086.08-10,193.88

Finding the Fourth Proportional to 20,738.73, 31,086.08 and 10,193.88

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Solution

The fourth proportional to 20,738.73, 31,086.08 and 10,193.88 is: 15,280.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,738.73 : 31,086.08 = 10,193.88 : x
  2. Step 2: Convert to fraction form
    20,738.73/31,086.08 = 10,193.88/x
  3. Step 3: Cross multiply
    20,738.73x = 31,086.08 × 10,193.88
  4. Step 4: Simplify right side
    20,738.73x = 316,887,639.24
  5. Step 5: Solve for x
    x = 316,887,639.24/20,738.73
  6. Step 6: Final answer
    x = 15,280.00

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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.