Home / 31,373.80-43,308.18-18,796.12

Finding the Fourth Proportional to 31,373.80, 43,308.18 and 18,796.12

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Solution

The fourth proportional to 31,373.80, 43,308.18 and 18,796.12 is: 25,946.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,373.80 : 43,308.18 = 18,796.12 : x
  2. Step 2: Convert to fraction form
    31,373.80/43,308.18 = 18,796.12/x
  3. Step 3: Cross multiply
    31,373.80x = 43,308.18 × 18,796.12
  4. Step 4: Simplify right side
    31,373.80x = 814,025,748.26
  5. Step 5: Solve for x
    x = 814,025,748.26/31,373.80
  6. Step 6: Final answer
    x = 25,946.04

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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.