Home / 17,220.78-23,760.81-10,147.86

Finding the Fourth Proportional to 17,220.78, 23,760.81 and 10,147.86

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Solution

The fourth proportional to 17,220.78, 23,760.81 and 10,147.86 is: 14,001.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,220.78 : 23,760.81 = 10,147.86 : x
  2. Step 2: Convert to fraction form
    17,220.78/23,760.81 = 10,147.86/x
  3. Step 3: Cross multiply
    17,220.78x = 23,760.81 × 10,147.86
  4. Step 4: Simplify right side
    17,220.78x = 241,121,373.37
  5. Step 5: Solve for x
    x = 241,121,373.37/17,220.78
  6. Step 6: Final answer
    x = 14,001.77

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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.