Home / 21,564.20-32,335.36-9,867.39

Finding the Fourth Proportional to 21,564.20, 32,335.36 and 9,867.39

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Solution

The fourth proportional to 21,564.20, 32,335.36 and 9,867.39 is: 14,796.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,564.20 : 32,335.36 = 9,867.39 : x
  2. Step 2: Convert to fraction form
    21,564.20/32,335.36 = 9,867.39/x
  3. Step 3: Cross multiply
    21,564.20x = 32,335.36 × 9,867.39
  4. Step 4: Simplify right side
    21,564.20x = 319,065,607.91
  5. Step 5: Solve for x
    x = 319,065,607.91/21,564.20
  6. Step 6: Final answer
    x = 14,796.08

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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.