Home / 22,115.12-30,519.63-12,043.07

Finding the Fourth Proportional to 22,115.12, 30,519.63 and 12,043.07

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Solution

The fourth proportional to 22,115.12, 30,519.63 and 12,043.07 is: 16,619.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,115.12 : 30,519.63 = 12,043.07 : x
  2. Step 2: Convert to fraction form
    22,115.12/30,519.63 = 12,043.07/x
  3. Step 3: Cross multiply
    22,115.12x = 30,519.63 × 12,043.07
  4. Step 4: Simplify right side
    22,115.12x = 367,549,887.87
  5. Step 5: Solve for x
    x = 367,549,887.87/22,115.12
  6. Step 6: Final answer
    x = 16,619.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.