Home / 42,663.68-63,971.84-19,842.56

Finding the Fourth Proportional to 42,663.68, 63,971.84 and 19,842.56

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Solution

The fourth proportional to 42,663.68, 63,971.84 and 19,842.56 is: 29,752.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,663.68 : 63,971.84 = 19,842.56 : x
  2. Step 2: Convert to fraction form
    42,663.68/63,971.84 = 19,842.56/x
  3. Step 3: Cross multiply
    42,663.68x = 63,971.84 × 19,842.56
  4. Step 4: Simplify right side
    42,663.68x = 1,269,365,073.51
  5. Step 5: Solve for x
    x = 1,269,365,073.51/42,663.68
  6. Step 6: Final answer
    x = 29,752.83

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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.