Home / 31,575.88-43,535.31-20,226.71

Finding the Fourth Proportional to 31,575.88, 43,535.31 and 20,226.71

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Solution

The fourth proportional to 31,575.88, 43,535.31 and 20,226.71 is: 27,887.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,575.88 : 43,535.31 = 20,226.71 : x
  2. Step 2: Convert to fraction form
    31,575.88/43,535.31 = 20,226.71/x
  3. Step 3: Cross multiply
    31,575.88x = 43,535.31 × 20,226.71
  4. Step 4: Simplify right side
    31,575.88x = 880,576,090.13
  5. Step 5: Solve for x
    x = 880,576,090.13/31,575.88
  6. Step 6: Final answer
    x = 27,887.62

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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.