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Finding the Fourth Proportional to 21,903.52, 32,857.04 and 8,748.67

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Solution

The fourth proportional to 21,903.52, 32,857.04 and 8,748.67 is: 13,123.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,903.52 : 32,857.04 = 8,748.67 : x
  2. Step 2: Convert to fraction form
    21,903.52/32,857.04 = 8,748.67/x
  3. Step 3: Cross multiply
    21,903.52x = 32,857.04 × 8,748.67
  4. Step 4: Simplify right side
    21,903.52x = 287,455,356.39
  5. Step 5: Solve for x
    x = 287,455,356.39/21,903.52
  6. Step 6: Final answer
    x = 13,123.71

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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.