Home / 39,005.92-58,409.16-21,456.48

Finding the Fourth Proportional to 39,005.92, 58,409.16 and 21,456.48

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Solution

The fourth proportional to 39,005.92, 58,409.16 and 21,456.48 is: 32,129.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,005.92 : 58,409.16 = 21,456.48 : x
  2. Step 2: Convert to fraction form
    39,005.92/58,409.16 = 21,456.48/x
  3. Step 3: Cross multiply
    39,005.92x = 58,409.16 × 21,456.48
  4. Step 4: Simplify right side
    39,005.92x = 1,253,254,973.36
  5. Step 5: Solve for x
    x = 1,253,254,973.36/39,005.92
  6. Step 6: Final answer
    x = 32,129.87

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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.