Home / 28,897.96-43,352.32-9,171.20

Finding the Fourth Proportional to 28,897.96, 43,352.32 and 9,171.20

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Solution

The fourth proportional to 28,897.96, 43,352.32 and 9,171.20 is: 13,758.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,897.96 : 43,352.32 = 9,171.20 : x
  2. Step 2: Convert to fraction form
    28,897.96/43,352.32 = 9,171.20/x
  3. Step 3: Cross multiply
    28,897.96x = 43,352.32 × 9,171.20
  4. Step 4: Simplify right side
    28,897.96x = 397,592,797.18
  5. Step 5: Solve for x
    x = 397,592,797.18/28,897.96
  6. Step 6: Final answer
    x = 13,758.51

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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.