Home / 20,949.73-31,424.59-6,158.77

Finding the Fourth Proportional to 20,949.73, 31,424.59 and 6,158.77

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Solution

The fourth proportional to 20,949.73, 31,424.59 and 6,158.77 is: 9,238.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,949.73 : 31,424.59 = 6,158.77 : x
  2. Step 2: Convert to fraction form
    20,949.73/31,424.59 = 6,158.77/x
  3. Step 3: Cross multiply
    20,949.73x = 31,424.59 × 6,158.77
  4. Step 4: Simplify right side
    20,949.73x = 193,536,822.15
  5. Step 5: Solve for x
    x = 193,536,822.15/20,949.73
  6. Step 6: Final answer
    x = 9,238.15

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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.