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Finding the Fourth Proportional to 20,095.76, 30,144.36 and 6,948.56

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Solution

The fourth proportional to 20,095.76, 30,144.36 and 6,948.56 is: 10,423.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,095.76 : 30,144.36 = 6,948.56 : x
  2. Step 2: Convert to fraction form
    20,095.76/30,144.36 = 6,948.56/x
  3. Step 3: Cross multiply
    20,095.76x = 30,144.36 × 6,948.56
  4. Step 4: Simplify right side
    20,095.76x = 209,459,894.12
  5. Step 5: Solve for x
    x = 209,459,894.12/20,095.76
  6. Step 6: Final answer
    x = 10,423.09

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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.