Home / 28,489.68-42,626.10-17,203.50

Finding the Fourth Proportional to 28,489.68, 42,626.10 and 17,203.50

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Solution

The fourth proportional to 28,489.68, 42,626.10 and 17,203.50 is: 25,739.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,489.68 : 42,626.10 = 17,203.50 : x
  2. Step 2: Convert to fraction form
    28,489.68/42,626.10 = 17,203.50/x
  3. Step 3: Cross multiply
    28,489.68x = 42,626.10 × 17,203.50
  4. Step 4: Simplify right side
    28,489.68x = 733,318,111.35
  5. Step 5: Solve for x
    x = 733,318,111.35/28,489.68
  6. Step 6: Final answer
    x = 25,739.78

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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.