Home / 21,610.35-32,408.10-10,509.93

Finding the Fourth Proportional to 21,610.35, 32,408.10 and 10,509.93

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Solution

The fourth proportional to 21,610.35, 32,408.10 and 10,509.93 is: 15,761.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,610.35 : 32,408.10 = 10,509.93 : x
  2. Step 2: Convert to fraction form
    21,610.35/32,408.10 = 10,509.93/x
  3. Step 3: Cross multiply
    21,610.35x = 32,408.10 × 10,509.93
  4. Step 4: Simplify right side
    21,610.35x = 340,606,862.43
  5. Step 5: Solve for x
    x = 340,606,862.43/21,610.35
  6. Step 6: Final answer
    x = 15,761.28

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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.