Home / 25,919.12-38,878.43-11,875.17

Finding the Fourth Proportional to 25,919.12, 38,878.43 and 11,875.17

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Solution

The fourth proportional to 25,919.12, 38,878.43 and 11,875.17 is: 17,812.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,919.12 : 38,878.43 = 11,875.17 : x
  2. Step 2: Convert to fraction form
    25,919.12/38,878.43 = 11,875.17/x
  3. Step 3: Cross multiply
    25,919.12x = 38,878.43 × 11,875.17
  4. Step 4: Simplify right side
    25,919.12x = 461,687,711.82
  5. Step 5: Solve for x
    x = 461,687,711.82/25,919.12
  6. Step 6: Final answer
    x = 17,812.63

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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.