Home / 38,580.48-57,871.42-13,619.92

Finding the Fourth Proportional to 38,580.48, 57,871.42 and 13,619.92

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Solution

The fourth proportional to 38,580.48, 57,871.42 and 13,619.92 is: 20,430.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,580.48 : 57,871.42 = 13,619.92 : x
  2. Step 2: Convert to fraction form
    38,580.48/57,871.42 = 13,619.92/x
  3. Step 3: Cross multiply
    38,580.48x = 57,871.42 × 13,619.92
  4. Step 4: Simplify right side
    38,580.48x = 788,204,110.69
  5. Step 5: Solve for x
    x = 788,204,110.69/38,580.48
  6. Step 6: Final answer
    x = 20,430.13

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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.