Home / 28,149.90-42,194.46-18,296.28

Finding the Fourth Proportional to 28,149.90, 42,194.46 and 18,296.28

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Solution

The fourth proportional to 28,149.90, 42,194.46 and 18,296.28 is: 27,424.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,149.90 : 42,194.46 = 18,296.28 : x
  2. Step 2: Convert to fraction form
    28,149.90/42,194.46 = 18,296.28/x
  3. Step 3: Cross multiply
    28,149.90x = 42,194.46 × 18,296.28
  4. Step 4: Simplify right side
    28,149.90x = 772,001,654.61
  5. Step 5: Solve for x
    x = 772,001,654.61/28,149.90
  6. Step 6: Final answer
    x = 27,424.67

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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.