Home / 21,750.86-32,603.51-9,107.88

Finding the Fourth Proportional to 21,750.86, 32,603.51 and 9,107.88

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Solution

The fourth proportional to 21,750.86, 32,603.51 and 9,107.88 is: 13,652.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,750.86 : 32,603.51 = 9,107.88 : x
  2. Step 2: Convert to fraction form
    21,750.86/32,603.51 = 9,107.88/x
  3. Step 3: Cross multiply
    21,750.86x = 32,603.51 × 9,107.88
  4. Step 4: Simplify right side
    21,750.86x = 296,948,757.17
  5. Step 5: Solve for x
    x = 296,948,757.17/21,750.86
  6. Step 6: Final answer
    x = 13,652.28

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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.