Home / 37,780.16-56,674.20-12,819.20

Finding the Fourth Proportional to 37,780.16, 56,674.20 and 12,819.20

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Solution

The fourth proportional to 37,780.16, 56,674.20 and 12,819.20 is: 19,230.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,780.16 : 56,674.20 = 12,819.20 : x
  2. Step 2: Convert to fraction form
    37,780.16/56,674.20 = 12,819.20/x
  3. Step 3: Cross multiply
    37,780.16x = 56,674.20 × 12,819.20
  4. Step 4: Simplify right side
    37,780.16x = 726,517,904.64
  5. Step 5: Solve for x
    x = 726,517,904.64/37,780.16
  6. Step 6: Final answer
    x = 19,230.14

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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.