Home / 20,712.30-31,040.73-7,552.26

Finding the Fourth Proportional to 20,712.30, 31,040.73 and 7,552.26

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Solution

The fourth proportional to 20,712.30, 31,040.73 and 7,552.26 is: 11,318.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,712.30 : 31,040.73 = 7,552.26 : x
  2. Step 2: Convert to fraction form
    20,712.30/31,040.73 = 7,552.26/x
  3. Step 3: Cross multiply
    20,712.30x = 31,040.73 × 7,552.26
  4. Step 4: Simplify right side
    20,712.30x = 234,427,663.55
  5. Step 5: Solve for x
    x = 234,427,663.55/20,712.30
  6. Step 6: Final answer
    x = 11,318.28

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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.