Home / 20,253.48-30,380.58-7,106.28

Finding the Fourth Proportional to 20,253.48, 30,380.58 and 7,106.28

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Solution

The fourth proportional to 20,253.48, 30,380.58 and 7,106.28 is: 10,659.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,253.48 : 30,380.58 = 7,106.28 : x
  2. Step 2: Convert to fraction form
    20,253.48/30,380.58 = 7,106.28/x
  3. Step 3: Cross multiply
    20,253.48x = 30,380.58 × 7,106.28
  4. Step 4: Simplify right side
    20,253.48x = 215,892,908.04
  5. Step 5: Solve for x
    x = 215,892,908.04/20,253.48
  6. Step 6: Final answer
    x = 10,659.55

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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.