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Finding the Fourth Proportional to 21,748.08, 32,635.08 and 7,898.16

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Solution

The fourth proportional to 21,748.08, 32,635.08 and 7,898.16 is: 11,851.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,748.08 : 32,635.08 = 7,898.16 : x
  2. Step 2: Convert to fraction form
    21,748.08/32,635.08 = 7,898.16/x
  3. Step 3: Cross multiply
    21,748.08x = 32,635.08 × 7,898.16
  4. Step 4: Simplify right side
    21,748.08x = 257,757,083.45
  5. Step 5: Solve for x
    x = 257,757,083.45/21,748.08
  6. Step 6: Final answer
    x = 11,851.95

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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.