Home / 28,592.76-42,841.72-20,231.33

Finding the Fourth Proportional to 28,592.76, 42,841.72 and 20,231.33

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Solution

The fourth proportional to 28,592.76, 42,841.72 and 20,231.33 is: 30,313.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,592.76 : 42,841.72 = 20,231.33 : x
  2. Step 2: Convert to fraction form
    28,592.76/42,841.72 = 20,231.33/x
  3. Step 3: Cross multiply
    28,592.76x = 42,841.72 × 20,231.33
  4. Step 4: Simplify right side
    28,592.76x = 866,744,873.93
  5. Step 5: Solve for x
    x = 866,744,873.93/28,592.76
  6. Step 6: Final answer
    x = 30,313.44

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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.