Home / 21,045.62-31,568.24-5,250.54

Finding the Fourth Proportional to 21,045.62, 31,568.24 and 5,250.54

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Solution

The fourth proportional to 21,045.62, 31,568.24 and 5,250.54 is: 7,875.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,045.62 : 31,568.24 = 5,250.54 : x
  2. Step 2: Convert to fraction form
    21,045.62/31,568.24 = 5,250.54/x
  3. Step 3: Cross multiply
    21,045.62x = 31,568.24 × 5,250.54
  4. Step 4: Simplify right side
    21,045.62x = 165,750,306.85
  5. Step 5: Solve for x
    x = 165,750,306.85/21,045.62
  6. Step 6: Final answer
    x = 7,875.76

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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.