Home / 23,170.23-31,951.47-20,609.91

Finding the Fourth Proportional to 23,170.23, 31,951.47 and 20,609.91

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Solution

The fourth proportional to 23,170.23, 31,951.47 and 20,609.91 is: 28,420.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,170.23 : 31,951.47 = 20,609.91 : x
  2. Step 2: Convert to fraction form
    23,170.23/31,951.47 = 20,609.91/x
  3. Step 3: Cross multiply
    23,170.23x = 31,951.47 × 20,609.91
  4. Step 4: Simplify right side
    23,170.23x = 658,516,921.07
  5. Step 5: Solve for x
    x = 658,516,921.07/23,170.23
  6. Step 6: Final answer
    x = 28,420.82

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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.