Home / 22,369.39-30,866.76-13,868.41

Finding the Fourth Proportional to 22,369.39, 30,866.76 and 13,868.41

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Solution

The fourth proportional to 22,369.39, 30,866.76 and 13,868.41 is: 19,136.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,369.39 : 30,866.76 = 13,868.41 : x
  2. Step 2: Convert to fraction form
    22,369.39/30,866.76 = 13,868.41/x
  3. Step 3: Cross multiply
    22,369.39x = 30,866.76 × 13,868.41
  4. Step 4: Simplify right side
    22,369.39x = 428,072,973.64
  5. Step 5: Solve for x
    x = 428,072,973.64/22,369.39
  6. Step 6: Final answer
    x = 19,136.55

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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.