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Finding the Fourth Proportional to 21,798.99, 32,654.10 and 19,982.57

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Solution

The fourth proportional to 21,798.99, 32,654.10 and 19,982.57 is: 29,933.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,798.99 : 32,654.10 = 19,982.57 : x
  2. Step 2: Convert to fraction form
    21,798.99/32,654.10 = 19,982.57/x
  3. Step 3: Cross multiply
    21,798.99x = 32,654.10 × 19,982.57
  4. Step 4: Simplify right side
    21,798.99x = 652,512,750.70
  5. Step 5: Solve for x
    x = 652,512,750.70/21,798.99
  6. Step 6: Final answer
    x = 29,933.16

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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.