Home / 20,882.61-31,324.77-5,300.64

Finding the Fourth Proportional to 20,882.61, 31,324.77 and 5,300.64

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Solution

The fourth proportional to 20,882.61, 31,324.77 and 5,300.64 is: 7,951.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,882.61 : 31,324.77 = 5,300.64 : x
  2. Step 2: Convert to fraction form
    20,882.61/31,324.77 = 5,300.64/x
  3. Step 3: Cross multiply
    20,882.61x = 31,324.77 × 5,300.64
  4. Step 4: Simplify right side
    20,882.61x = 166,041,328.85
  5. Step 5: Solve for x
    x = 166,041,328.85/20,882.61
  6. Step 6: Final answer
    x = 7,951.18

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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.