Home / 28,154.18-42,147.14-17,027.21

Finding the Fourth Proportional to 28,154.18, 42,147.14 and 17,027.21

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Solution

The fourth proportional to 28,154.18, 42,147.14 and 17,027.21 is: 25,489.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,154.18 : 42,147.14 = 17,027.21 : x
  2. Step 2: Convert to fraction form
    28,154.18/42,147.14 = 17,027.21/x
  3. Step 3: Cross multiply
    28,154.18x = 42,147.14 × 17,027.21
  4. Step 4: Simplify right side
    28,154.18x = 717,648,118.54
  5. Step 5: Solve for x
    x = 717,648,118.54/28,154.18
  6. Step 6: Final answer
    x = 25,489.93

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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.