Home / 28,654.20-42,993.45-18,132.30

Finding the Fourth Proportional to 28,654.20, 42,993.45 and 18,132.30

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Solution

The fourth proportional to 28,654.20, 42,993.45 and 18,132.30 is: 27,206.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,654.20 : 42,993.45 = 18,132.30 : x
  2. Step 2: Convert to fraction form
    28,654.20/42,993.45 = 18,132.30/x
  3. Step 3: Cross multiply
    28,654.20x = 42,993.45 × 18,132.30
  4. Step 4: Simplify right side
    28,654.20x = 779,570,133.44
  5. Step 5: Solve for x
    x = 779,570,133.44/28,654.20
  6. Step 6: Final answer
    x = 27,206.14

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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.