Home / 21,972.50-32,894.13-13,625.72

Finding the Fourth Proportional to 21,972.50, 32,894.13 and 13,625.72

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Solution

The fourth proportional to 21,972.50, 32,894.13 and 13,625.72 is: 20,398.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,972.50 : 32,894.13 = 13,625.72 : x
  2. Step 2: Convert to fraction form
    21,972.50/32,894.13 = 13,625.72/x
  3. Step 3: Cross multiply
    21,972.50x = 32,894.13 × 13,625.72
  4. Step 4: Simplify right side
    21,972.50x = 448,206,205.02
  5. Step 5: Solve for x
    x = 448,206,205.02/21,972.50
  6. Step 6: Final answer
    x = 20,398.51

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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.