Home / 23,140.55-31,933.96-12,530.19

Finding the Fourth Proportional to 23,140.55, 31,933.96 and 12,530.19

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Solution

The fourth proportional to 23,140.55, 31,933.96 and 12,530.19 is: 17,291.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,140.55 : 31,933.96 = 12,530.19 : x
  2. Step 2: Convert to fraction form
    23,140.55/31,933.96 = 12,530.19/x
  3. Step 3: Cross multiply
    23,140.55x = 31,933.96 × 12,530.19
  4. Step 4: Simplify right side
    23,140.55x = 400,138,439.70
  5. Step 5: Solve for x
    x = 400,138,439.70/23,140.55
  6. Step 6: Final answer
    x = 17,291.65

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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.