Home / 38,520.59-57,787.20-12,231.63

Finding the Fourth Proportional to 38,520.59, 57,787.20 and 12,231.63

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Solution

The fourth proportional to 38,520.59, 57,787.20 and 12,231.63 is: 18,349.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,520.59 : 57,787.20 = 12,231.63 : x
  2. Step 2: Convert to fraction form
    38,520.59/57,787.20 = 12,231.63/x
  3. Step 3: Cross multiply
    38,520.59x = 57,787.20 × 12,231.63
  4. Step 4: Simplify right side
    38,520.59x = 706,831,649.14
  5. Step 5: Solve for x
    x = 706,831,649.14/38,520.59
  6. Step 6: Final answer
    x = 18,349.45

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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.