Home / 23,138.67-34,754.97-20,426.79

Finding the Fourth Proportional to 23,138.67, 34,754.97 and 20,426.79

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Solution

The fourth proportional to 23,138.67, 34,754.97 and 20,426.79 is: 30,681.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,138.67 : 34,754.97 = 20,426.79 : x
  2. Step 2: Convert to fraction form
    23,138.67/34,754.97 = 20,426.79/x
  3. Step 3: Cross multiply
    23,138.67x = 34,754.97 × 20,426.79
  4. Step 4: Simplify right side
    23,138.67x = 709,932,473.65
  5. Step 5: Solve for x
    x = 709,932,473.65/23,138.67
  6. Step 6: Final answer
    x = 30,681.65

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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.