Home / 20,833.31-31,233.80-10,296.06

Finding the Fourth Proportional to 20,833.31, 31,233.80 and 10,296.06

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Solution

The fourth proportional to 20,833.31, 31,233.80 and 10,296.06 is: 15,436.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,833.31 : 31,233.80 = 10,296.06 : x
  2. Step 2: Convert to fraction form
    20,833.31/31,233.80 = 10,296.06/x
  3. Step 3: Cross multiply
    20,833.31x = 31,233.80 × 10,296.06
  4. Step 4: Simplify right side
    20,833.31x = 321,585,027.35
  5. Step 5: Solve for x
    x = 321,585,027.35/20,833.31
  6. Step 6: Final answer
    x = 15,436.10

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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.