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Finding the Fourth Proportional to 21,693.52, 32,515.22 and 9,982.14

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Solution

The fourth proportional to 21,693.52, 32,515.22 and 9,982.14 is: 14,961.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,693.52 : 32,515.22 = 9,982.14 : x
  2. Step 2: Convert to fraction form
    21,693.52/32,515.22 = 9,982.14/x
  3. Step 3: Cross multiply
    21,693.52x = 32,515.22 × 9,982.14
  4. Step 4: Simplify right side
    21,693.52x = 324,571,381.19
  5. Step 5: Solve for x
    x = 324,571,381.19/21,693.52
  6. Step 6: Final answer
    x = 14,961.67

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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.