Home / 21,176.20-31,765.02-10,084.12

Finding the Fourth Proportional to 21,176.20, 31,765.02 and 10,084.12

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Solution

The fourth proportional to 21,176.20, 31,765.02 and 10,084.12 is: 15,126.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,176.20 : 31,765.02 = 10,084.12 : x
  2. Step 2: Convert to fraction form
    21,176.20/31,765.02 = 10,084.12/x
  3. Step 3: Cross multiply
    21,176.20x = 31,765.02 × 10,084.12
  4. Step 4: Simplify right side
    21,176.20x = 320,322,273.48
  5. Step 5: Solve for x
    x = 320,322,273.48/21,176.20
  6. Step 6: Final answer
    x = 15,126.52

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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.