Home / 20,147.67-30,222.90-5,356.26

Finding the Fourth Proportional to 20,147.67, 30,222.90 and 5,356.26

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Solution

The fourth proportional to 20,147.67, 30,222.90 and 5,356.26 is: 8,034.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,147.67 : 30,222.90 = 5,356.26 : x
  2. Step 2: Convert to fraction form
    20,147.67/30,222.90 = 5,356.26/x
  3. Step 3: Cross multiply
    20,147.67x = 30,222.90 × 5,356.26
  4. Step 4: Simplify right side
    20,147.67x = 161,881,710.35
  5. Step 5: Solve for x
    x = 161,881,710.35/20,147.67
  6. Step 6: Final answer
    x = 8,034.76

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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.