Home / 37,380.39-56,080.02-12,420.57

Finding the Fourth Proportional to 37,380.39, 56,080.02 and 12,420.57

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Solution

The fourth proportional to 37,380.39, 56,080.02 and 12,420.57 is: 18,633.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,380.39 : 56,080.02 = 12,420.57 : x
  2. Step 2: Convert to fraction form
    37,380.39/56,080.02 = 12,420.57/x
  3. Step 3: Cross multiply
    37,380.39x = 56,080.02 × 12,420.57
  4. Step 4: Simplify right side
    37,380.39x = 696,545,814.01
  5. Step 5: Solve for x
    x = 696,545,814.01/37,380.39
  6. Step 6: Final answer
    x = 18,633.99

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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.