Home / 70,928.32-106,396.11-18,338.26

Finding the Fourth Proportional to 70,928.32, 106,396.11 and 18,338.26

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Solution

The fourth proportional to 70,928.32, 106,396.11 and 18,338.26 is: 27,508.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,928.32 : 106,396.11 = 18,338.26 : x
  2. Step 2: Convert to fraction form
    70,928.32/106,396.11 = 18,338.26/x
  3. Step 3: Cross multiply
    70,928.32x = 106,396.11 × 18,338.26
  4. Step 4: Simplify right side
    70,928.32x = 1,951,119,528.17
  5. Step 5: Solve for x
    x = 1,951,119,528.17/70,928.32
  6. Step 6: Final answer
    x = 27,508.33

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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.