Home / 22,821.56-31,456.12-15,265.18

Finding the Fourth Proportional to 22,821.56, 31,456.12 and 15,265.18

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Solution

The fourth proportional to 22,821.56, 31,456.12 and 15,265.18 is: 21,040.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,821.56 : 31,456.12 = 15,265.18 : x
  2. Step 2: Convert to fraction form
    22,821.56/31,456.12 = 15,265.18/x
  3. Step 3: Cross multiply
    22,821.56x = 31,456.12 × 15,265.18
  4. Step 4: Simplify right side
    22,821.56x = 480,183,229.67
  5. Step 5: Solve for x
    x = 480,183,229.67/22,821.56
  6. Step 6: Final answer
    x = 21,040.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.