Home / 48,213.50-72,338.13-20,136.60

Finding the Fourth Proportional to 48,213.50, 72,338.13 and 20,136.60

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Solution

The fourth proportional to 48,213.50, 72,338.13 and 20,136.60 is: 30,212.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,213.50 : 72,338.13 = 20,136.60 : x
  2. Step 2: Convert to fraction form
    48,213.50/72,338.13 = 20,136.60/x
  3. Step 3: Cross multiply
    48,213.50x = 72,338.13 × 20,136.60
  4. Step 4: Simplify right side
    48,213.50x = 1,456,643,988.56
  5. Step 5: Solve for x
    x = 1,456,643,988.56/48,213.50
  6. Step 6: Final answer
    x = 30,212.37

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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.