Home / 21,625.20-32,436.32-13,306.56

Finding the Fourth Proportional to 21,625.20, 32,436.32 and 13,306.56

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Solution

The fourth proportional to 21,625.20, 32,436.32 and 13,306.56 is: 19,958.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,625.20 : 32,436.32 = 13,306.56 : x
  2. Step 2: Convert to fraction form
    21,625.20/32,436.32 = 13,306.56/x
  3. Step 3: Cross multiply
    21,625.20x = 32,436.32 × 13,306.56
  4. Step 4: Simplify right side
    21,625.20x = 431,615,838.26
  5. Step 5: Solve for x
    x = 431,615,838.26/21,625.20
  6. Step 6: Final answer
    x = 19,958.93

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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.