Home / 26,774.32-36,949.92-15,439.60

Finding the Fourth Proportional to 26,774.32, 36,949.92 and 15,439.60

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Solution

The fourth proportional to 26,774.32, 36,949.92 and 15,439.60 is: 21,307.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,774.32 : 36,949.92 = 15,439.60 : x
  2. Step 2: Convert to fraction form
    26,774.32/36,949.92 = 15,439.60/x
  3. Step 3: Cross multiply
    26,774.32x = 36,949.92 × 15,439.60
  4. Step 4: Simplify right side
    26,774.32x = 570,491,984.83
  5. Step 5: Solve for x
    x = 570,491,984.83/26,774.32
  6. Step 6: Final answer
    x = 21,307.43

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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.