Home / 38,380.80-57,579.30-12,088.20

Finding the Fourth Proportional to 38,380.80, 57,579.30 and 12,088.20

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Solution

The fourth proportional to 38,380.80, 57,579.30 and 12,088.20 is: 18,134.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,380.80 : 57,579.30 = 12,088.20 : x
  2. Step 2: Convert to fraction form
    38,380.80/57,579.30 = 12,088.20/x
  3. Step 3: Cross multiply
    38,380.80x = 57,579.30 × 12,088.20
  4. Step 4: Simplify right side
    38,380.80x = 696,030,094.26
  5. Step 5: Solve for x
    x = 696,030,094.26/38,380.80
  6. Step 6: Final answer
    x = 18,134.85

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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.