Home / 21,821.71-32,734.68-8,671.13

Finding the Fourth Proportional to 21,821.71, 32,734.68 and 8,671.13

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Solution

The fourth proportional to 21,821.71, 32,734.68 and 8,671.13 is: 13,007.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,821.71 : 32,734.68 = 8,671.13 : x
  2. Step 2: Convert to fraction form
    21,821.71/32,734.68 = 8,671.13/x
  3. Step 3: Cross multiply
    21,821.71x = 32,734.68 × 8,671.13
  4. Step 4: Simplify right side
    21,821.71x = 283,846,715.11
  5. Step 5: Solve for x
    x = 283,846,715.11/21,821.71
  6. Step 6: Final answer
    x = 13,007.54

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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.