Home / 22,621.16-31,206.38-13,540.33

Finding the Fourth Proportional to 22,621.16, 31,206.38 and 13,540.33

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Solution

The fourth proportional to 22,621.16, 31,206.38 and 13,540.33 is: 18,679.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,621.16 : 31,206.38 = 13,540.33 : x
  2. Step 2: Convert to fraction form
    22,621.16/31,206.38 = 13,540.33/x
  3. Step 3: Cross multiply
    22,621.16x = 31,206.38 × 13,540.33
  4. Step 4: Simplify right side
    22,621.16x = 422,544,459.57
  5. Step 5: Solve for x
    x = 422,544,459.57/22,621.16
  6. Step 6: Final answer
    x = 18,679.17

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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.