Home / 42,926.13-64,404.68-19,231.65

Finding the Fourth Proportional to 42,926.13, 64,404.68 and 19,231.65

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Solution

The fourth proportional to 42,926.13, 64,404.68 and 19,231.65 is: 28,854.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,926.13 : 64,404.68 = 19,231.65 : x
  2. Step 2: Convert to fraction form
    42,926.13/64,404.68 = 19,231.65/x
  3. Step 3: Cross multiply
    42,926.13x = 64,404.68 × 19,231.65
  4. Step 4: Simplify right side
    42,926.13x = 1,238,608,167.96
  5. Step 5: Solve for x
    x = 1,238,608,167.96/42,926.13
  6. Step 6: Final answer
    x = 28,854.41

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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.