Home / 21,925.36-32,891.16-7,129.52

Finding the Fourth Proportional to 21,925.36, 32,891.16 and 7,129.52

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Solution

The fourth proportional to 21,925.36, 32,891.16 and 7,129.52 is: 10,695.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,925.36 : 32,891.16 = 7,129.52 : x
  2. Step 2: Convert to fraction form
    21,925.36/32,891.16 = 7,129.52/x
  3. Step 3: Cross multiply
    21,925.36x = 32,891.16 × 7,129.52
  4. Step 4: Simplify right side
    21,925.36x = 234,498,183.04
  5. Step 5: Solve for x
    x = 234,498,183.04/21,925.36
  6. Step 6: Final answer
    x = 10,695.29

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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.