Home / 20,886.32-31,329.92-7,035.28

Finding the Fourth Proportional to 20,886.32, 31,329.92 and 7,035.28

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Solution

The fourth proportional to 20,886.32, 31,329.92 and 7,035.28 is: 10,553.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,886.32 : 31,329.92 = 7,035.28 : x
  2. Step 2: Convert to fraction form
    20,886.32/31,329.92 = 7,035.28/x
  3. Step 3: Cross multiply
    20,886.32x = 31,329.92 × 7,035.28
  4. Step 4: Simplify right side
    20,886.32x = 220,414,759.58
  5. Step 5: Solve for x
    x = 220,414,759.58/20,886.32
  6. Step 6: Final answer
    x = 10,553.07

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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.