Home / 20,236.16-30,344.80-6,905.54

Finding the Fourth Proportional to 20,236.16, 30,344.80 and 6,905.54

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Solution

The fourth proportional to 20,236.16, 30,344.80 and 6,905.54 is: 10,355.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,236.16 : 30,344.80 = 6,905.54 : x
  2. Step 2: Convert to fraction form
    20,236.16/30,344.80 = 6,905.54/x
  3. Step 3: Cross multiply
    20,236.16x = 30,344.80 × 6,905.54
  4. Step 4: Simplify right side
    20,236.16x = 209,547,138.78
  5. Step 5: Solve for x
    x = 209,547,138.78/20,236.16
  6. Step 6: Final answer
    x = 10,355.09

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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.