Home / 28,901.70-43,352.55-9,181.80

Finding the Fourth Proportional to 28,901.70, 43,352.55 and 9,181.80

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Solution

The fourth proportional to 28,901.70, 43,352.55 and 9,181.80 is: 13,772.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,901.70 : 43,352.55 = 9,181.80 : x
  2. Step 2: Convert to fraction form
    28,901.70/43,352.55 = 9,181.80/x
  3. Step 3: Cross multiply
    28,901.70x = 43,352.55 × 9,181.80
  4. Step 4: Simplify right side
    28,901.70x = 398,054,443.59
  5. Step 5: Solve for x
    x = 398,054,443.59/28,901.70
  6. Step 6: Final answer
    x = 13,772.70

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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.