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Finding the Fourth Proportional to 21,595.36, 32,397.36 and 7,745.44

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Solution

The fourth proportional to 21,595.36, 32,397.36 and 7,745.44 is: 11,619.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,595.36 : 32,397.36 = 7,745.44 : x
  2. Step 2: Convert to fraction form
    21,595.36/32,397.36 = 7,745.44/x
  3. Step 3: Cross multiply
    21,595.36x = 32,397.36 × 7,745.44
  4. Step 4: Simplify right side
    21,595.36x = 250,931,808.04
  5. Step 5: Solve for x
    x = 250,931,808.04/21,595.36
  6. Step 6: Final answer
    x = 11,619.71

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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.