Home / 20,767.59-31,125.47-10,382.31

Finding the Fourth Proportional to 20,767.59, 31,125.47 and 10,382.31

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Solution

The fourth proportional to 20,767.59, 31,125.47 and 10,382.31 is: 15,560.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,767.59 : 31,125.47 = 10,382.31 : x
  2. Step 2: Convert to fraction form
    20,767.59/31,125.47 = 10,382.31/x
  3. Step 3: Cross multiply
    20,767.59x = 31,125.47 × 10,382.31
  4. Step 4: Simplify right side
    20,767.59x = 323,154,226.52
  5. Step 5: Solve for x
    x = 323,154,226.52/20,767.59
  6. Step 6: Final answer
    x = 15,560.51

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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.