Home / 18,940.57-26,136.18-18,303.91

Finding the Fourth Proportional to 18,940.57, 26,136.18 and 18,303.91

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Solution

The fourth proportional to 18,940.57, 26,136.18 and 18,303.91 is: 25,257.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,940.57 : 26,136.18 = 18,303.91 : x
  2. Step 2: Convert to fraction form
    18,940.57/26,136.18 = 18,303.91/x
  3. Step 3: Cross multiply
    18,940.57x = 26,136.18 × 18,303.91
  4. Step 4: Simplify right side
    18,940.57x = 478,394,286.46
  5. Step 5: Solve for x
    x = 478,394,286.46/18,940.57
  6. Step 6: Final answer
    x = 25,257.65

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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.