Home / 22,658.14-31,268.91-13,707.28

Finding the Fourth Proportional to 22,658.14, 31,268.91 and 13,707.28

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Solution

The fourth proportional to 22,658.14, 31,268.91 and 13,707.28 is: 18,916.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,658.14 : 31,268.91 = 13,707.28 : x
  2. Step 2: Convert to fraction form
    22,658.14/31,268.91 = 13,707.28/x
  3. Step 3: Cross multiply
    22,658.14x = 31,268.91 × 13,707.28
  4. Step 4: Simplify right side
    22,658.14x = 428,611,704.66
  5. Step 5: Solve for x
    x = 428,611,704.66/22,658.14
  6. Step 6: Final answer
    x = 18,916.46

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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.