Home / 22,890.06-31,591.62-13,942.80

Finding the Fourth Proportional to 22,890.06, 31,591.62 and 13,942.80

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Solution

The fourth proportional to 22,890.06, 31,591.62 and 13,942.80 is: 19,243.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,890.06 : 31,591.62 = 13,942.80 : x
  2. Step 2: Convert to fraction form
    22,890.06/31,591.62 = 13,942.80/x
  3. Step 3: Cross multiply
    22,890.06x = 31,591.62 × 13,942.80
  4. Step 4: Simplify right side
    22,890.06x = 440,475,639.34
  5. Step 5: Solve for x
    x = 440,475,639.34/22,890.06
  6. Step 6: Final answer
    x = 19,243.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.