Home / 23,415.71-35,147.25-20,764.31

Finding the Fourth Proportional to 23,415.71, 35,147.25 and 20,764.31

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Solution

The fourth proportional to 23,415.71, 35,147.25 and 20,764.31 is: 31,167.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,415.71 : 35,147.25 = 20,764.31 : x
  2. Step 2: Convert to fraction form
    23,415.71/35,147.25 = 20,764.31/x
  3. Step 3: Cross multiply
    23,415.71x = 35,147.25 × 20,764.31
  4. Step 4: Simplify right side
    23,415.71x = 729,808,218.91
  5. Step 5: Solve for x
    x = 729,808,218.91/23,415.71
  6. Step 6: Final answer
    x = 31,167.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.