Home / 21,606.48-32,408.60-8,461.26

Finding the Fourth Proportional to 21,606.48, 32,408.60 and 8,461.26

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Solution

The fourth proportional to 21,606.48, 32,408.60 and 8,461.26 is: 12,691.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,606.48 : 32,408.60 = 8,461.26 : x
  2. Step 2: Convert to fraction form
    21,606.48/32,408.60 = 8,461.26/x
  3. Step 3: Cross multiply
    21,606.48x = 32,408.60 × 8,461.26
  4. Step 4: Simplify right side
    21,606.48x = 274,217,590.84
  5. Step 5: Solve for x
    x = 274,217,590.84/21,606.48
  6. Step 6: Final answer
    x = 12,691.45

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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.