Home / 29,278.80-43,814.52-19,919.76

Finding the Fourth Proportional to 29,278.80, 43,814.52 and 19,919.76

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Solution

The fourth proportional to 29,278.80, 43,814.52 and 19,919.76 is: 29,809.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,278.80 : 43,814.52 = 19,919.76 : x
  2. Step 2: Convert to fraction form
    29,278.80/43,814.52 = 19,919.76/x
  3. Step 3: Cross multiply
    29,278.80x = 43,814.52 × 19,919.76
  4. Step 4: Simplify right side
    29,278.80x = 872,774,722.92
  5. Step 5: Solve for x
    x = 872,774,722.92/29,278.80
  6. Step 6: Final answer
    x = 29,809.10

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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.