Home / 22,839.13-31,521.03-13,407.69

Finding the Fourth Proportional to 22,839.13, 31,521.03 and 13,407.69

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Solution

The fourth proportional to 22,839.13, 31,521.03 and 13,407.69 is: 18,504.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,839.13 : 31,521.03 = 13,407.69 : x
  2. Step 2: Convert to fraction form
    22,839.13/31,521.03 = 13,407.69/x
  3. Step 3: Cross multiply
    22,839.13x = 31,521.03 × 13,407.69
  4. Step 4: Simplify right side
    22,839.13x = 422,624,198.72
  5. Step 5: Solve for x
    x = 422,624,198.72/22,839.13
  6. Step 6: Final answer
    x = 18,504.40

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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.