Home / 23,178.92-31,986.90-12,568.59

Finding the Fourth Proportional to 23,178.92, 31,986.90 and 12,568.59

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Solution

The fourth proportional to 23,178.92, 31,986.90 and 12,568.59 is: 17,344.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,178.92 : 31,986.90 = 12,568.59 : x
  2. Step 2: Convert to fraction form
    23,178.92/31,986.90 = 12,568.59/x
  3. Step 3: Cross multiply
    23,178.92x = 31,986.90 × 12,568.59
  4. Step 4: Simplify right side
    23,178.92x = 402,030,231.47
  5. Step 5: Solve for x
    x = 402,030,231.47/23,178.92
  6. Step 6: Final answer
    x = 17,344.65

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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.