Home / 20,631.61-30,942.75-5,836.55

Finding the Fourth Proportional to 20,631.61, 30,942.75 and 5,836.55

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Solution

The fourth proportional to 20,631.61, 30,942.75 and 5,836.55 is: 8,753.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,631.61 : 30,942.75 = 5,836.55 : x
  2. Step 2: Convert to fraction form
    20,631.61/30,942.75 = 5,836.55/x
  3. Step 3: Cross multiply
    20,631.61x = 30,942.75 × 5,836.55
  4. Step 4: Simplify right side
    20,631.61x = 180,598,907.51
  5. Step 5: Solve for x
    x = 180,598,907.51/20,631.61
  6. Step 6: Final answer
    x = 8,753.51

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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.