Home / 37,780.60-56,669.10-12,818.20

Finding the Fourth Proportional to 37,780.60, 56,669.10 and 12,818.20

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Solution

The fourth proportional to 37,780.60, 56,669.10 and 12,818.20 is: 19,226.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,780.60 : 56,669.10 = 12,818.20 : x
  2. Step 2: Convert to fraction form
    37,780.60/56,669.10 = 12,818.20/x
  3. Step 3: Cross multiply
    37,780.60x = 56,669.10 × 12,818.20
  4. Step 4: Simplify right side
    37,780.60x = 726,395,857.62
  5. Step 5: Solve for x
    x = 726,395,857.62/37,780.60
  6. Step 6: Final answer
    x = 19,226.69

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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.