Home / 19,431.96-29,155.68-7,753.38

Finding the Fourth Proportional to 19,431.96, 29,155.68 and 7,753.38

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Solution

The fourth proportional to 19,431.96, 29,155.68 and 7,753.38 is: 11,633.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,431.96 : 29,155.68 = 7,753.38 : x
  2. Step 2: Convert to fraction form
    19,431.96/29,155.68 = 7,753.38/x
  3. Step 3: Cross multiply
    19,431.96x = 29,155.68 × 7,753.38
  4. Step 4: Simplify right side
    19,431.96x = 226,055,066.20
  5. Step 5: Solve for x
    x = 226,055,066.20/19,431.96
  6. Step 6: Final answer
    x = 11,633.16

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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.