Home / 31,391.12-43,319.60-17,050.88

Finding the Fourth Proportional to 31,391.12, 43,319.60 and 17,050.88

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Solution

The fourth proportional to 31,391.12, 43,319.60 and 17,050.88 is: 23,530.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,391.12 : 43,319.60 = 17,050.88 : x
  2. Step 2: Convert to fraction form
    31,391.12/43,319.60 = 17,050.88/x
  3. Step 3: Cross multiply
    31,391.12x = 43,319.60 × 17,050.88
  4. Step 4: Simplify right side
    31,391.12x = 738,637,301.25
  5. Step 5: Solve for x
    x = 738,637,301.25/31,391.12
  6. Step 6: Final answer
    x = 23,530.14

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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.