Home / 25,787.46-38,717.12-13,316.48

Finding the Fourth Proportional to 25,787.46, 38,717.12 and 13,316.48

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Solution

The fourth proportional to 25,787.46, 38,717.12 and 13,316.48 is: 19,993.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,787.46 : 38,717.12 = 13,316.48 : x
  2. Step 2: Convert to fraction form
    25,787.46/38,717.12 = 13,316.48/x
  3. Step 3: Cross multiply
    25,787.46x = 38,717.12 × 13,316.48
  4. Step 4: Simplify right side
    25,787.46x = 515,575,493.97
  5. Step 5: Solve for x
    x = 515,575,493.97/25,787.46
  6. Step 6: Final answer
    x = 19,993.26

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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.