Home / 23,140.56-31,934.19-12,530.42

Finding the Fourth Proportional to 23,140.56, 31,934.19 and 12,530.42

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Solution

The fourth proportional to 23,140.56, 31,934.19 and 12,530.42 is: 17,292.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,140.56 : 31,934.19 = 12,530.42 : x
  2. Step 2: Convert to fraction form
    23,140.56/31,934.19 = 12,530.42/x
  3. Step 3: Cross multiply
    23,140.56x = 31,934.19 × 12,530.42
  4. Step 4: Simplify right side
    23,140.56x = 400,148,700.38
  5. Step 5: Solve for x
    x = 400,148,700.38/23,140.56
  6. Step 6: Final answer
    x = 17,292.10

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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.