Home / 21,704.20-32,556.30-19,695.40

Finding the Fourth Proportional to 21,704.20, 32,556.30 and 19,695.40

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Solution

The fourth proportional to 21,704.20, 32,556.30 and 19,695.40 is: 29,543.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,704.20 : 32,556.30 = 19,695.40 : x
  2. Step 2: Convert to fraction form
    21,704.20/32,556.30 = 19,695.40/x
  3. Step 3: Cross multiply
    21,704.20x = 32,556.30 × 19,695.40
  4. Step 4: Simplify right side
    21,704.20x = 641,209,351.02
  5. Step 5: Solve for x
    x = 641,209,351.02/21,704.20
  6. Step 6: Final answer
    x = 29,543.10

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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.