Home / 25,376.78-35,020.89-13,892.49

Finding the Fourth Proportional to 25,376.78, 35,020.89 and 13,892.49

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Solution

The fourth proportional to 25,376.78, 35,020.89 and 13,892.49 is: 19,172.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,376.78 : 35,020.89 = 13,892.49 : x
  2. Step 2: Convert to fraction form
    25,376.78/35,020.89 = 13,892.49/x
  3. Step 3: Cross multiply
    25,376.78x = 35,020.89 × 13,892.49
  4. Step 4: Simplify right side
    25,376.78x = 486,527,364.12
  5. Step 5: Solve for x
    x = 486,527,364.12/25,376.78
  6. Step 6: Final answer
    x = 19,172.15

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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.