Home / 37,380.87-56,080.77-12,421.05

Finding the Fourth Proportional to 37,380.87, 56,080.77 and 12,421.05

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Solution

The fourth proportional to 37,380.87, 56,080.77 and 12,421.05 is: 18,634.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,380.87 : 56,080.77 = 12,421.05 : x
  2. Step 2: Convert to fraction form
    37,380.87/56,080.77 = 12,421.05/x
  3. Step 3: Cross multiply
    37,380.87x = 56,080.77 × 12,421.05
  4. Step 4: Simplify right side
    37,380.87x = 696,582,048.21
  5. Step 5: Solve for x
    x = 696,582,048.21/37,380.87
  6. Step 6: Final answer
    x = 18,634.72

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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.