Home / 21,452.08-32,159.08-8,115.74

Finding the Fourth Proportional to 21,452.08, 32,159.08 and 8,115.74

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Solution

The fourth proportional to 21,452.08, 32,159.08 and 8,115.74 is: 12,166.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,452.08 : 32,159.08 = 8,115.74 : x
  2. Step 2: Convert to fraction form
    21,452.08/32,159.08 = 8,115.74/x
  3. Step 3: Cross multiply
    21,452.08x = 32,159.08 × 8,115.74
  4. Step 4: Simplify right side
    21,452.08x = 260,994,731.92
  5. Step 5: Solve for x
    x = 260,994,731.92/21,452.08
  6. Step 6: Final answer
    x = 12,166.41

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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.