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Finding the Fourth Proportional to 21,642.57, 32,466.65 and 7,601.58

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Solution

The fourth proportional to 21,642.57, 32,466.65 and 7,601.58 is: 11,403.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,642.57 : 32,466.65 = 7,601.58 : x
  2. Step 2: Convert to fraction form
    21,642.57/32,466.65 = 7,601.58/x
  3. Step 3: Cross multiply
    21,642.57x = 32,466.65 × 7,601.58
  4. Step 4: Simplify right side
    21,642.57x = 246,797,799.30
  5. Step 5: Solve for x
    x = 246,797,799.30/21,642.57
  6. Step 6: Final answer
    x = 11,403.35

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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.