Home / 21,459.78-32,198.54-11,587.44

Finding the Fourth Proportional to 21,459.78, 32,198.54 and 11,587.44

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Solution

The fourth proportional to 21,459.78, 32,198.54 and 11,587.44 is: 17,385.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,459.78 : 32,198.54 = 11,587.44 : x
  2. Step 2: Convert to fraction form
    21,459.78/32,198.54 = 11,587.44/x
  3. Step 3: Cross multiply
    21,459.78x = 32,198.54 × 11,587.44
  4. Step 4: Simplify right side
    21,459.78x = 373,098,650.34
  5. Step 5: Solve for x
    x = 373,098,650.34/21,459.78
  6. Step 6: Final answer
    x = 17,385.95

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1.5x scale

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.