Home / 28,836.68-39,772.23-18,222.44

Finding the Fourth Proportional to 28,836.68, 39,772.23 and 18,222.44

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Solution

The fourth proportional to 28,836.68, 39,772.23 and 18,222.44 is: 25,132.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,836.68 : 39,772.23 = 18,222.44 : x
  2. Step 2: Convert to fraction form
    28,836.68/39,772.23 = 18,222.44/x
  3. Step 3: Cross multiply
    28,836.68x = 39,772.23 × 18,222.44
  4. Step 4: Simplify right side
    28,836.68x = 724,747,074.84
  5. Step 5: Solve for x
    x = 724,747,074.84/28,836.68
  6. Step 6: Final answer
    x = 25,132.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.