Home / 20,197.20-30,320.10-20,051.40

Finding the Fourth Proportional to 20,197.20, 30,320.10 and 20,051.40

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Solution

The fourth proportional to 20,197.20, 30,320.10 and 20,051.40 is: 30,101.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,197.20 : 30,320.10 = 20,051.40 : x
  2. Step 2: Convert to fraction form
    20,197.20/30,320.10 = 20,051.40/x
  3. Step 3: Cross multiply
    20,197.20x = 30,320.10 × 20,051.40
  4. Step 4: Simplify right side
    20,197.20x = 607,960,453.14
  5. Step 5: Solve for x
    x = 607,960,453.14/20,197.20
  6. Step 6: Final answer
    x = 30,101.22

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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.