Home / 20,932.92-31,402.77-6,888.87

Finding the Fourth Proportional to 20,932.92, 31,402.77 and 6,888.87

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Solution

The fourth proportional to 20,932.92, 31,402.77 and 6,888.87 is: 10,334.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,932.92 : 31,402.77 = 6,888.87 : x
  2. Step 2: Convert to fraction form
    20,932.92/31,402.77 = 6,888.87/x
  3. Step 3: Cross multiply
    20,932.92x = 31,402.77 × 6,888.87
  4. Step 4: Simplify right side
    20,932.92x = 216,329,600.17
  5. Step 5: Solve for x
    x = 216,329,600.17/20,932.92
  6. Step 6: Final answer
    x = 10,334.42

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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.