Home / 21,887.66-32,828.38-12,497.20

Finding the Fourth Proportional to 21,887.66, 32,828.38 and 12,497.20

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Solution

The fourth proportional to 21,887.66, 32,828.38 and 12,497.20 is: 18,744.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,887.66 : 32,828.38 = 12,497.20 : x
  2. Step 2: Convert to fraction form
    21,887.66/32,828.38 = 12,497.20/x
  3. Step 3: Cross multiply
    21,887.66x = 32,828.38 × 12,497.20
  4. Step 4: Simplify right side
    21,887.66x = 410,262,830.54
  5. Step 5: Solve for x
    x = 410,262,830.54/21,887.66
  6. Step 6: Final answer
    x = 18,744.02

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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.