Home / 31,757.16-43,821.72-18,332.74

Finding the Fourth Proportional to 31,757.16, 43,821.72 and 18,332.74

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Solution

The fourth proportional to 31,757.16, 43,821.72 and 18,332.74 is: 25,297.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,757.16 : 43,821.72 = 18,332.74 : x
  2. Step 2: Convert to fraction form
    31,757.16/43,821.72 = 18,332.74/x
  3. Step 3: Cross multiply
    31,757.16x = 43,821.72 × 18,332.74
  4. Step 4: Simplify right side
    31,757.16x = 803,372,158.31
  5. Step 5: Solve for x
    x = 803,372,158.31/31,757.16
  6. Step 6: Final answer
    x = 25,297.36

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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.