Home / 20,995.92-31,490.01-6,956.10

Finding the Fourth Proportional to 20,995.92, 31,490.01 and 6,956.10

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Solution

The fourth proportional to 20,995.92, 31,490.01 and 6,956.10 is: 10,432.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,995.92 : 31,490.01 = 6,956.10 : x
  2. Step 2: Convert to fraction form
    20,995.92/31,490.01 = 6,956.10/x
  3. Step 3: Cross multiply
    20,995.92x = 31,490.01 × 6,956.10
  4. Step 4: Simplify right side
    20,995.92x = 219,047,658.56
  5. Step 5: Solve for x
    x = 219,047,658.56/20,995.92
  6. Step 6: Final answer
    x = 10,432.87

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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.