Home / 38,690.46-57,998.88-12,378.24

Finding the Fourth Proportional to 38,690.46, 57,998.88 and 12,378.24

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Solution

The fourth proportional to 38,690.46, 57,998.88 and 12,378.24 is: 18,555.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,690.46 : 57,998.88 = 12,378.24 : x
  2. Step 2: Convert to fraction form
    38,690.46/57,998.88 = 12,378.24/x
  3. Step 3: Cross multiply
    38,690.46x = 57,998.88 × 12,378.24
  4. Step 4: Simplify right side
    38,690.46x = 717,924,056.37
  5. Step 5: Solve for x
    x = 717,924,056.37/38,690.46
  6. Step 6: Final answer
    x = 18,555.58

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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.