Home / 28,380.56-42,530.96-22,431.29

Finding the Fourth Proportional to 28,380.56, 42,530.96 and 22,431.29

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Solution

The fourth proportional to 28,380.56, 42,530.96 and 22,431.29 is: 33,615.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,380.56 : 42,530.96 = 22,431.29 : x
  2. Step 2: Convert to fraction form
    28,380.56/42,530.96 = 22,431.29/x
  3. Step 3: Cross multiply
    28,380.56x = 42,530.96 × 22,431.29
  4. Step 4: Simplify right side
    28,380.56x = 954,024,141.16
  5. Step 5: Solve for x
    x = 954,024,141.16/28,380.56
  6. Step 6: Final answer
    x = 33,615.42

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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.