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Finding the Fourth Proportional to 21,895.20, 32,845.08 and 7,103.52

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Solution

The fourth proportional to 21,895.20, 32,845.08 and 7,103.52 is: 10,656.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,895.20 : 32,845.08 = 7,103.52 : x
  2. Step 2: Convert to fraction form
    21,895.20/32,845.08 = 7,103.52/x
  3. Step 3: Cross multiply
    21,895.20x = 32,845.08 × 7,103.52
  4. Step 4: Simplify right side
    21,895.20x = 233,315,682.68
  5. Step 5: Solve for x
    x = 233,315,682.68/21,895.20
  6. Step 6: Final answer
    x = 10,656.02

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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.