Home / 20,804.91-31,207.38-6,953.91

Finding the Fourth Proportional to 20,804.91, 31,207.38 and 6,953.91

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Solution

The fourth proportional to 20,804.91, 31,207.38 and 6,953.91 is: 10,430.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,804.91 : 31,207.38 = 6,953.91 : x
  2. Step 2: Convert to fraction form
    20,804.91/31,207.38 = 6,953.91/x
  3. Step 3: Cross multiply
    20,804.91x = 31,207.38 × 6,953.91
  4. Step 4: Simplify right side
    20,804.91x = 217,013,311.86
  5. Step 5: Solve for x
    x = 217,013,311.86/20,804.91
  6. Step 6: Final answer
    x = 10,430.87

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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.