Home / 21,930.24-32,887.04-8,775.68

Finding the Fourth Proportional to 21,930.24, 32,887.04 and 8,775.68

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Solution

The fourth proportional to 21,930.24, 32,887.04 and 8,775.68 is: 13,160.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,930.24 : 32,887.04 = 8,775.68 : x
  2. Step 2: Convert to fraction form
    21,930.24/32,887.04 = 8,775.68/x
  3. Step 3: Cross multiply
    21,930.24x = 32,887.04 × 8,775.68
  4. Step 4: Simplify right side
    21,930.24x = 288,606,139.19
  5. Step 5: Solve for x
    x = 288,606,139.19/21,930.24
  6. Step 6: Final answer
    x = 13,160.19

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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.