Home / 30,115.06-45,175.38-7,928.53

Finding the Fourth Proportional to 30,115.06, 45,175.38 and 7,928.53

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Solution

The fourth proportional to 30,115.06, 45,175.38 and 7,928.53 is: 11,893.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,115.06 : 45,175.38 = 7,928.53 : x
  2. Step 2: Convert to fraction form
    30,115.06/45,175.38 = 7,928.53/x
  3. Step 3: Cross multiply
    30,115.06x = 45,175.38 × 7,928.53
  4. Step 4: Simplify right side
    30,115.06x = 358,174,355.59
  5. Step 5: Solve for x
    x = 358,174,355.59/30,115.06
  6. Step 6: Final answer
    x = 11,893.53

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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.