Home / 20,343.35-30,530.66-9,102.17

Finding the Fourth Proportional to 20,343.35, 30,530.66 and 9,102.17

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Solution

The fourth proportional to 20,343.35, 30,530.66 and 9,102.17 is: 13,660.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,343.35 : 30,530.66 = 9,102.17 : x
  2. Step 2: Convert to fraction form
    20,343.35/30,530.66 = 9,102.17/x
  3. Step 3: Cross multiply
    20,343.35x = 30,530.66 × 9,102.17
  4. Step 4: Simplify right side
    20,343.35x = 277,895,288.35
  5. Step 5: Solve for x
    x = 277,895,288.35/20,343.35
  6. Step 6: Final answer
    x = 13,660.25

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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.