Home / 42,919.68-64,392.94-19,247.06

Finding the Fourth Proportional to 42,919.68, 64,392.94 and 19,247.06

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Solution

The fourth proportional to 42,919.68, 64,392.94 and 19,247.06 is: 28,876.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,919.68 : 64,392.94 = 19,247.06 : x
  2. Step 2: Convert to fraction form
    42,919.68/64,392.94 = 19,247.06/x
  3. Step 3: Cross multiply
    42,919.68x = 64,392.94 × 19,247.06
  4. Step 4: Simplify right side
    42,919.68x = 1,239,374,779.76
  5. Step 5: Solve for x
    x = 1,239,374,779.76/42,919.68
  6. Step 6: Final answer
    x = 28,876.61

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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.