Home / 22,405.47-33,628.92-11,319.91

Finding the Fourth Proportional to 22,405.47, 33,628.92 and 11,319.91

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Solution

The fourth proportional to 22,405.47, 33,628.92 and 11,319.91 is: 16,990.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,405.47 : 33,628.92 = 11,319.91 : x
  2. Step 2: Convert to fraction form
    22,405.47/33,628.92 = 11,319.91/x
  3. Step 3: Cross multiply
    22,405.47x = 33,628.92 × 11,319.91
  4. Step 4: Simplify right side
    22,405.47x = 380,676,347.80
  5. Step 5: Solve for x
    x = 380,676,347.80/22,405.47
  6. Step 6: Final answer
    x = 16,990.33

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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.