Home / 23,126.81-31,915.11-13,055.69

Finding the Fourth Proportional to 23,126.81, 31,915.11 and 13,055.69

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Solution

The fourth proportional to 23,126.81, 31,915.11 and 13,055.69 is: 18,016.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,126.81 : 31,915.11 = 13,055.69 : x
  2. Step 2: Convert to fraction form
    23,126.81/31,915.11 = 13,055.69/x
  3. Step 3: Cross multiply
    23,126.81x = 31,915.11 × 13,055.69
  4. Step 4: Simplify right side
    23,126.81x = 416,673,782.48
  5. Step 5: Solve for x
    x = 416,673,782.48/23,126.81
  6. Step 6: Final answer
    x = 18,016.92

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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.