Home / 21,362.48-32,040.84-5,781.36

Finding the Fourth Proportional to 21,362.48, 32,040.84 and 5,781.36

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Solution

The fourth proportional to 21,362.48, 32,040.84 and 5,781.36 is: 8,671.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,362.48 : 32,040.84 = 5,781.36 : x
  2. Step 2: Convert to fraction form
    21,362.48/32,040.84 = 5,781.36/x
  3. Step 3: Cross multiply
    21,362.48x = 32,040.84 × 5,781.36
  4. Step 4: Simplify right side
    21,362.48x = 185,239,630.74
  5. Step 5: Solve for x
    x = 185,239,630.74/21,362.48
  6. Step 6: Final answer
    x = 8,671.26

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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.