Home / 20,140.17-30,212.70-5,349.36

Finding the Fourth Proportional to 20,140.17, 30,212.70 and 5,349.36

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Solution

The fourth proportional to 20,140.17, 30,212.70 and 5,349.36 is: 8,024.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,140.17 : 30,212.70 = 5,349.36 : x
  2. Step 2: Convert to fraction form
    20,140.17/30,212.70 = 5,349.36/x
  3. Step 3: Cross multiply
    20,140.17x = 30,212.70 × 5,349.36
  4. Step 4: Simplify right side
    20,140.17x = 161,618,608.87
  5. Step 5: Solve for x
    x = 161,618,608.87/20,140.17
  6. Step 6: Final answer
    x = 8,024.69

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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.