Home / 20,021.40-30,032.10-9,634.20

Finding the Fourth Proportional to 20,021.40, 30,032.10 and 9,634.20

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Solution

The fourth proportional to 20,021.40, 30,032.10 and 9,634.20 is: 14,451.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,021.40 : 30,032.10 = 9,634.20 : x
  2. Step 2: Convert to fraction form
    20,021.40/30,032.10 = 9,634.20/x
  3. Step 3: Cross multiply
    20,021.40x = 30,032.10 × 9,634.20
  4. Step 4: Simplify right side
    20,021.40x = 289,335,257.82
  5. Step 5: Solve for x
    x = 289,335,257.82/20,021.40
  6. Step 6: Final answer
    x = 14,451.30

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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.