Home / 23,218.68-34,772.67-12,672.90

Finding the Fourth Proportional to 23,218.68, 34,772.67 and 12,672.90

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Solution

The fourth proportional to 23,218.68, 34,772.67 and 12,672.90 is: 18,979.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,218.68 : 34,772.67 = 12,672.90 : x
  2. Step 2: Convert to fraction form
    23,218.68/34,772.67 = 12,672.90/x
  3. Step 3: Cross multiply
    23,218.68x = 34,772.67 × 12,672.90
  4. Step 4: Simplify right side
    23,218.68x = 440,670,569.64
  5. Step 5: Solve for x
    x = 440,670,569.64/23,218.68
  6. Step 6: Final answer
    x = 18,979.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.