Home / 22,121.37-30,538.49-15,084.77

Finding the Fourth Proportional to 22,121.37, 30,538.49 and 15,084.77

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Solution

The fourth proportional to 22,121.37, 30,538.49 and 15,084.77 is: 20,824.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,121.37 : 30,538.49 = 15,084.77 : x
  2. Step 2: Convert to fraction form
    22,121.37/30,538.49 = 15,084.77/x
  3. Step 3: Cross multiply
    22,121.37x = 30,538.49 × 15,084.77
  4. Step 4: Simplify right side
    22,121.37x = 460,665,869.68
  5. Step 5: Solve for x
    x = 460,665,869.68/22,121.37
  6. Step 6: Final answer
    x = 20,824.47

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Half scale
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Double scale
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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.