Home / 34,278.67-51,433.80-21,122.65

Finding the Fourth Proportional to 34,278.67, 51,433.80 and 21,122.65

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Solution

The fourth proportional to 34,278.67, 51,433.80 and 21,122.65 is: 31,693.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,278.67 : 51,433.80 = 21,122.65 : x
  2. Step 2: Convert to fraction form
    34,278.67/51,433.80 = 21,122.65/x
  3. Step 3: Cross multiply
    34,278.67x = 51,433.80 × 21,122.65
  4. Step 4: Simplify right side
    34,278.67x = 1,086,418,155.57
  5. Step 5: Solve for x
    x = 1,086,418,155.57/34,278.67
  6. Step 6: Final answer
    x = 31,693.71

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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.