Home / 20,888.27-31,335.38-6,845.29

Finding the Fourth Proportional to 20,888.27, 31,335.38 and 6,845.29

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Solution

The fourth proportional to 20,888.27, 31,335.38 and 6,845.29 is: 10,268.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,888.27 : 31,335.38 = 6,845.29 : x
  2. Step 2: Convert to fraction form
    20,888.27/31,335.38 = 6,845.29/x
  3. Step 3: Cross multiply
    20,888.27x = 31,335.38 × 6,845.29
  4. Step 4: Simplify right side
    20,888.27x = 214,499,763.36
  5. Step 5: Solve for x
    x = 214,499,763.36/20,888.27
  6. Step 6: Final answer
    x = 10,268.91

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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.