Home / 22,740.56-31,321.26-19,759.76

Finding the Fourth Proportional to 22,740.56, 31,321.26 and 19,759.76

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Solution

The fourth proportional to 22,740.56, 31,321.26 and 19,759.76 is: 27,215.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,740.56 : 31,321.26 = 19,759.76 : x
  2. Step 2: Convert to fraction form
    22,740.56/31,321.26 = 19,759.76/x
  3. Step 3: Cross multiply
    22,740.56x = 31,321.26 × 19,759.76
  4. Step 4: Simplify right side
    22,740.56x = 618,900,580.50
  5. Step 5: Solve for x
    x = 618,900,580.50/22,740.56
  6. Step 6: Final answer
    x = 27,215.71

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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.