Home / 21,616.20-32,408.55-14,578.74

Finding the Fourth Proportional to 21,616.20, 32,408.55 and 14,578.74

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Solution

The fourth proportional to 21,616.20, 32,408.55 and 14,578.74 is: 21,857.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,616.20 : 32,408.55 = 14,578.74 : x
  2. Step 2: Convert to fraction form
    21,616.20/32,408.55 = 14,578.74/x
  3. Step 3: Cross multiply
    21,616.20x = 32,408.55 × 14,578.74
  4. Step 4: Simplify right side
    21,616.20x = 472,475,824.23
  5. Step 5: Solve for x
    x = 472,475,824.23/21,616.20
  6. Step 6: Final answer
    x = 21,857.49

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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.