Home / 28,331.34-42,462.14-12,519.33

Finding the Fourth Proportional to 28,331.34, 42,462.14 and 12,519.33

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Solution

The fourth proportional to 28,331.34, 42,462.14 and 12,519.33 is: 18,763.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,331.34 : 42,462.14 = 12,519.33 : x
  2. Step 2: Convert to fraction form
    28,331.34/42,462.14 = 12,519.33/x
  3. Step 3: Cross multiply
    28,331.34x = 42,462.14 × 12,519.33
  4. Step 4: Simplify right side
    28,331.34x = 531,597,321.34
  5. Step 5: Solve for x
    x = 531,597,321.34/28,331.34
  6. Step 6: Final answer
    x = 18,763.58

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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.