Home / 20,510.29-30,772.57-6,472.48

Finding the Fourth Proportional to 20,510.29, 30,772.57 and 6,472.48

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Solution

The fourth proportional to 20,510.29, 30,772.57 and 6,472.48 is: 9,710.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,510.29 : 30,772.57 = 6,472.48 : x
  2. Step 2: Convert to fraction form
    20,510.29/30,772.57 = 6,472.48/x
  3. Step 3: Cross multiply
    20,510.29x = 30,772.57 × 6,472.48
  4. Step 4: Simplify right side
    20,510.29x = 199,174,843.87
  5. Step 5: Solve for x
    x = 199,174,843.87/20,510.29
  6. Step 6: Final answer
    x = 9,710.97

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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.