Home / 37,720.60-56,579.10-12,758.20

Finding the Fourth Proportional to 37,720.60, 56,579.10 and 12,758.20

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Solution

The fourth proportional to 37,720.60, 56,579.10 and 12,758.20 is: 19,136.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,720.60 : 56,579.10 = 12,758.20 : x
  2. Step 2: Convert to fraction form
    37,720.60/56,579.10 = 12,758.20/x
  3. Step 3: Cross multiply
    37,720.60x = 56,579.10 × 12,758.20
  4. Step 4: Simplify right side
    37,720.60x = 721,847,473.62
  5. Step 5: Solve for x
    x = 721,847,473.62/37,720.60
  6. Step 6: Final answer
    x = 19,136.69

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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.