Home / 21,486.38-29,651.40-12,055.14

Finding the Fourth Proportional to 21,486.38, 29,651.40 and 12,055.14

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Solution

The fourth proportional to 21,486.38, 29,651.40 and 12,055.14 is: 16,636.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,486.38 : 29,651.40 = 12,055.14 : x
  2. Step 2: Convert to fraction form
    21,486.38/29,651.40 = 12,055.14/x
  3. Step 3: Cross multiply
    21,486.38x = 29,651.40 × 12,055.14
  4. Step 4: Simplify right side
    21,486.38x = 357,451,778.20
  5. Step 5: Solve for x
    x = 357,451,778.20/21,486.38
  6. Step 6: Final answer
    x = 16,636.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.