Home / 42,876.30-64,320.68-13,296.52

Finding the Fourth Proportional to 42,876.30, 64,320.68 and 13,296.52

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Solution

The fourth proportional to 42,876.30, 64,320.68 and 13,296.52 is: 19,946.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,876.30 : 64,320.68 = 13,296.52 : x
  2. Step 2: Convert to fraction form
    42,876.30/64,320.68 = 13,296.52/x
  3. Step 3: Cross multiply
    42,876.30x = 64,320.68 × 13,296.52
  4. Step 4: Simplify right side
    42,876.30x = 855,241,321.68
  5. Step 5: Solve for x
    x = 855,241,321.68/42,876.30
  6. Step 6: Final answer
    x = 19,946.71

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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.