Home / 21,628.92-32,456.20-9,148.26

Finding the Fourth Proportional to 21,628.92, 32,456.20 and 9,148.26

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Solution

The fourth proportional to 21,628.92, 32,456.20 and 9,148.26 is: 13,727.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,628.92 : 32,456.20 = 9,148.26 : x
  2. Step 2: Convert to fraction form
    21,628.92/32,456.20 = 9,148.26/x
  3. Step 3: Cross multiply
    21,628.92x = 32,456.20 × 9,148.26
  4. Step 4: Simplify right side
    21,628.92x = 296,917,756.21
  5. Step 5: Solve for x
    x = 296,917,756.21/21,628.92
  6. Step 6: Final answer
    x = 13,727.81

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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.