Home / 23,091.43-31,865.53-13,019.78

Finding the Fourth Proportional to 23,091.43, 31,865.53 and 13,019.78

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Solution

The fourth proportional to 23,091.43, 31,865.53 and 13,019.78 is: 17,966.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,091.43 : 31,865.53 = 13,019.78 : x
  2. Step 2: Convert to fraction form
    23,091.43/31,865.53 = 13,019.78/x
  3. Step 3: Cross multiply
    23,091.43x = 31,865.53 × 13,019.78
  4. Step 4: Simplify right side
    23,091.43x = 414,882,190.18
  5. Step 5: Solve for x
    x = 414,882,190.18/23,091.43
  6. Step 6: Final answer
    x = 17,966.93

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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.