Home / 31,560.45-43,558.14-20,242.71

Finding the Fourth Proportional to 31,560.45, 43,558.14 and 20,242.71

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Solution

The fourth proportional to 31,560.45, 43,558.14 and 20,242.71 is: 27,937.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,560.45 : 43,558.14 = 20,242.71 : x
  2. Step 2: Convert to fraction form
    31,560.45/43,558.14 = 20,242.71/x
  3. Step 3: Cross multiply
    31,560.45x = 43,558.14 × 20,242.71
  4. Step 4: Simplify right side
    31,560.45x = 881,734,796.16
  5. Step 5: Solve for x
    x = 881,734,796.16/31,560.45
  6. Step 6: Final answer
    x = 27,937.97

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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.