Home / 28,744.82-43,117.24-12,931.38

Finding the Fourth Proportional to 28,744.82, 43,117.24 and 12,931.38

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Solution

The fourth proportional to 28,744.82, 43,117.24 and 12,931.38 is: 19,397.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,744.82 : 43,117.24 = 12,931.38 : x
  2. Step 2: Convert to fraction form
    28,744.82/43,117.24 = 12,931.38/x
  3. Step 3: Cross multiply
    28,744.82x = 43,117.24 × 12,931.38
  4. Step 4: Simplify right side
    28,744.82x = 557,565,134.75
  5. Step 5: Solve for x
    x = 557,565,134.75/28,744.82
  6. Step 6: Final answer
    x = 19,397.07

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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.