Home / 21,436.12-32,141.22-14,489.56

Finding the Fourth Proportional to 21,436.12, 32,141.22 and 14,489.56

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Solution

The fourth proportional to 21,436.12, 32,141.22 and 14,489.56 is: 21,725.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,436.12 : 32,141.22 = 14,489.56 : x
  2. Step 2: Convert to fraction form
    21,436.12/32,141.22 = 14,489.56/x
  3. Step 3: Cross multiply
    21,436.12x = 32,141.22 × 14,489.56
  4. Step 4: Simplify right side
    21,436.12x = 465,712,135.66
  5. Step 5: Solve for x
    x = 465,712,135.66/21,436.12
  6. Step 6: Final answer
    x = 21,725.58

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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.