Home / 21,612.87-32,423.23-10,519.58

Finding the Fourth Proportional to 21,612.87, 32,423.23 and 10,519.58

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Solution

The fourth proportional to 21,612.87, 32,423.23 and 10,519.58 is: 15,781.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,612.87 : 32,423.23 = 10,519.58 : x
  2. Step 2: Convert to fraction form
    21,612.87/32,423.23 = 10,519.58/x
  3. Step 3: Cross multiply
    21,612.87x = 32,423.23 × 10,519.58
  4. Step 4: Simplify right side
    21,612.87x = 341,078,856.05
  5. Step 5: Solve for x
    x = 341,078,856.05/21,612.87
  6. Step 6: Final answer
    x = 15,781.28

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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.