Home / 22,955.93-31,679.19-12,885.33

Finding the Fourth Proportional to 22,955.93, 31,679.19 and 12,885.33

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Solution

The fourth proportional to 22,955.93, 31,679.19 and 12,885.33 is: 17,781.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,955.93 : 31,679.19 = 12,885.33 : x
  2. Step 2: Convert to fraction form
    22,955.93/31,679.19 = 12,885.33/x
  3. Step 3: Cross multiply
    22,955.93x = 31,679.19 × 12,885.33
  4. Step 4: Simplify right side
    22,955.93x = 408,196,817.28
  5. Step 5: Solve for x
    x = 408,196,817.28/22,955.93
  6. Step 6: Final answer
    x = 17,781.76

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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.