Home / 27,138.96-40,680.54-15,427.44

Finding the Fourth Proportional to 27,138.96, 40,680.54 and 15,427.44

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Solution

The fourth proportional to 27,138.96, 40,680.54 and 15,427.44 is: 23,125.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,138.96 : 40,680.54 = 15,427.44 : x
  2. Step 2: Convert to fraction form
    27,138.96/40,680.54 = 15,427.44/x
  3. Step 3: Cross multiply
    27,138.96x = 40,680.54 × 15,427.44
  4. Step 4: Simplify right side
    27,138.96x = 627,596,590.02
  5. Step 5: Solve for x
    x = 627,596,590.02/27,138.96
  6. Step 6: Final answer
    x = 23,125.30

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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.