Home / 23,126.82-31,915.12-13,055.70

Finding the Fourth Proportional to 23,126.82, 31,915.12 and 13,055.70

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Solution

The fourth proportional to 23,126.82, 31,915.12 and 13,055.70 is: 18,016.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,126.82 : 31,915.12 = 13,055.70 : x
  2. Step 2: Convert to fraction form
    23,126.82/31,915.12 = 13,055.70/x
  3. Step 3: Cross multiply
    23,126.82x = 31,915.12 × 13,055.70
  4. Step 4: Simplify right side
    23,126.82x = 416,674,232.18
  5. Step 5: Solve for x
    x = 416,674,232.18/23,126.82
  6. Step 6: Final answer
    x = 18,016.93

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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.