Home / 25,787.85-38,682.32-8,257.63

Finding the Fourth Proportional to 25,787.85, 38,682.32 and 8,257.63

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Solution

The fourth proportional to 25,787.85, 38,682.32 and 8,257.63 is: 12,386.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,787.85 : 38,682.32 = 8,257.63 : x
  2. Step 2: Convert to fraction form
    25,787.85/38,682.32 = 8,257.63/x
  3. Step 3: Cross multiply
    25,787.85x = 38,682.32 × 8,257.63
  4. Step 4: Simplify right side
    25,787.85x = 319,424,355.10
  5. Step 5: Solve for x
    x = 319,424,355.10/25,787.85
  6. Step 6: Final answer
    x = 12,386.62

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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.