Home / 20,679.66-31,037.40-10,825.83

Finding the Fourth Proportional to 20,679.66, 31,037.40 and 10,825.83

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Solution

The fourth proportional to 20,679.66, 31,037.40 and 10,825.83 is: 16,248.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,679.66 : 31,037.40 = 10,825.83 : x
  2. Step 2: Convert to fraction form
    20,679.66/31,037.40 = 10,825.83/x
  3. Step 3: Cross multiply
    20,679.66x = 31,037.40 × 10,825.83
  4. Step 4: Simplify right side
    20,679.66x = 336,005,616.04
  5. Step 5: Solve for x
    x = 336,005,616.04/20,679.66
  6. Step 6: Final answer
    x = 16,248.12

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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.