Home / 42,927.67-64,390.38-19,228.79

Finding the Fourth Proportional to 42,927.67, 64,390.38 and 19,228.79

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Solution

The fourth proportional to 42,927.67, 64,390.38 and 19,228.79 is: 28,842.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,927.67 : 64,390.38 = 19,228.79 : x
  2. Step 2: Convert to fraction form
    42,927.67/64,390.38 = 19,228.79/x
  3. Step 3: Cross multiply
    42,927.67x = 64,390.38 × 19,228.79
  4. Step 4: Simplify right side
    42,927.67x = 1,238,149,183.91
  5. Step 5: Solve for x
    x = 1,238,149,183.91/42,927.67
  6. Step 6: Final answer
    x = 28,842.68

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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.