Home / 28,283.22-42,439.41-11,655.54

Finding the Fourth Proportional to 28,283.22, 42,439.41 and 11,655.54

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Solution

The fourth proportional to 28,283.22, 42,439.41 and 11,655.54 is: 17,489.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,283.22 : 42,439.41 = 11,655.54 : x
  2. Step 2: Convert to fraction form
    28,283.22/42,439.41 = 11,655.54/x
  3. Step 3: Cross multiply
    28,283.22x = 42,439.41 × 11,655.54
  4. Step 4: Simplify right side
    28,283.22x = 494,654,240.83
  5. Step 5: Solve for x
    x = 494,654,240.83/28,283.22
  6. Step 6: Final answer
    x = 17,489.32

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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.