Home / 22,362.39-30,866.81-13,405.41

Finding the Fourth Proportional to 22,362.39, 30,866.81 and 13,405.41

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Solution

The fourth proportional to 22,362.39, 30,866.81 and 13,405.41 is: 18,503.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,362.39 : 30,866.81 = 13,405.41 : x
  2. Step 2: Convert to fraction form
    22,362.39/30,866.81 = 13,405.41/x
  3. Step 3: Cross multiply
    22,362.39x = 30,866.81 × 13,405.41
  4. Step 4: Simplify right side
    22,362.39x = 413,782,176.42
  5. Step 5: Solve for x
    x = 413,782,176.42/22,362.39
  6. Step 6: Final answer
    x = 18,503.49

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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.