Home / 26,630.78-36,741.38-15,144.55

Finding the Fourth Proportional to 26,630.78, 36,741.38 and 15,144.55

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Solution

The fourth proportional to 26,630.78, 36,741.38 and 15,144.55 is: 20,894.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,630.78 : 36,741.38 = 15,144.55 : x
  2. Step 2: Convert to fraction form
    26,630.78/36,741.38 = 15,144.55/x
  3. Step 3: Cross multiply
    26,630.78x = 36,741.38 × 15,144.55
  4. Step 4: Simplify right side
    26,630.78x = 556,431,498.90
  5. Step 5: Solve for x
    x = 556,431,498.90/26,630.78
  6. Step 6: Final answer
    x = 20,894.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.