Home / 23,140.80-31,934.25-12,530.43

Finding the Fourth Proportional to 23,140.80, 31,934.25 and 12,530.43

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Solution

The fourth proportional to 23,140.80, 31,934.25 and 12,530.43 is: 17,291.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,140.80 : 31,934.25 = 12,530.43 : x
  2. Step 2: Convert to fraction form
    23,140.80/31,934.25 = 12,530.43/x
  3. Step 3: Cross multiply
    23,140.80x = 31,934.25 × 12,530.43
  4. Step 4: Simplify right side
    23,140.80x = 400,149,884.23
  5. Step 5: Solve for x
    x = 400,149,884.23/23,140.80
  6. Step 6: Final answer
    x = 17,291.96

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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.