Home / 38,663.36-57,989.28-12,365.36

Finding the Fourth Proportional to 38,663.36, 57,989.28 and 12,365.36

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Solution

The fourth proportional to 38,663.36, 57,989.28 and 12,365.36 is: 18,546.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,663.36 : 57,989.28 = 12,365.36 : x
  2. Step 2: Convert to fraction form
    38,663.36/57,989.28 = 12,365.36/x
  3. Step 3: Cross multiply
    38,663.36x = 57,989.28 × 12,365.36
  4. Step 4: Simplify right side
    38,663.36x = 717,058,323.34
  5. Step 5: Solve for x
    x = 717,058,323.34/38,663.36
  6. Step 6: Final answer
    x = 18,546.20

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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.