Home / 20,574.92-28,393.98-11,622.80

Finding the Fourth Proportional to 20,574.92, 28,393.98 and 11,622.80

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Solution

The fourth proportional to 20,574.92, 28,393.98 and 11,622.80 is: 16,039.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,574.92 : 28,393.98 = 11,622.80 : x
  2. Step 2: Convert to fraction form
    20,574.92/28,393.98 = 11,622.80/x
  3. Step 3: Cross multiply
    20,574.92x = 28,393.98 × 11,622.80
  4. Step 4: Simplify right side
    20,574.92x = 330,017,621.73
  5. Step 5: Solve for x
    x = 330,017,621.73/20,574.92
  6. Step 6: Final answer
    x = 16,039.80

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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.