Home / 34,275.67-51,429.30-21,119.65

Finding the Fourth Proportional to 34,275.67, 51,429.30 and 21,119.65

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Solution

The fourth proportional to 34,275.67, 51,429.30 and 21,119.65 is: 31,689.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,275.67 : 51,429.30 = 21,119.65 : x
  2. Step 2: Convert to fraction form
    34,275.67/51,429.30 = 21,119.65/x
  3. Step 3: Cross multiply
    34,275.67x = 51,429.30 × 21,119.65
  4. Step 4: Simplify right side
    34,275.67x = 1,086,168,815.75
  5. Step 5: Solve for x
    x = 1,086,168,815.75/34,275.67
  6. Step 6: Final answer
    x = 31,689.21

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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.