Home / 29,278.68-43,879.14-18,729.24

Finding the Fourth Proportional to 29,278.68, 43,879.14 and 18,729.24

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Solution

The fourth proportional to 29,278.68, 43,879.14 and 18,729.24 is: 28,068.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,278.68 : 43,879.14 = 18,729.24 : x
  2. Step 2: Convert to fraction form
    29,278.68/43,879.14 = 18,729.24/x
  3. Step 3: Cross multiply
    29,278.68x = 43,879.14 × 18,729.24
  4. Step 4: Simplify right side
    29,278.68x = 821,822,944.05
  5. Step 5: Solve for x
    x = 821,822,944.05/29,278.68
  6. Step 6: Final answer
    x = 28,068.99

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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.