Home / 21,232.74-31,761.27-19,308.18

Finding the Fourth Proportional to 21,232.74, 31,761.27 and 19,308.18

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Solution

The fourth proportional to 21,232.74, 31,761.27 and 19,308.18 is: 28,882.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,232.74 : 31,761.27 = 19,308.18 : x
  2. Step 2: Convert to fraction form
    21,232.74/31,761.27 = 19,308.18/x
  3. Step 3: Cross multiply
    21,232.74x = 31,761.27 × 19,308.18
  4. Step 4: Simplify right side
    21,232.74x = 613,252,318.19
  5. Step 5: Solve for x
    x = 613,252,318.19/21,232.74
  6. Step 6: Final answer
    x = 28,882.39

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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.