Home / 28,198.13-42,180.33-21,483.84

Finding the Fourth Proportional to 28,198.13, 42,180.33 and 21,483.84

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Solution

The fourth proportional to 28,198.13, 42,180.33 and 21,483.84 is: 32,136.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,198.13 : 42,180.33 = 21,483.84 : x
  2. Step 2: Convert to fraction form
    28,198.13/42,180.33 = 21,483.84/x
  3. Step 3: Cross multiply
    28,198.13x = 42,180.33 × 21,483.84
  4. Step 4: Simplify right side
    28,198.13x = 906,195,699.61
  5. Step 5: Solve for x
    x = 906,195,699.61/28,198.13
  6. Step 6: Final answer
    x = 32,136.74

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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.