Home / 20,574.41-28,392.19-11,621.61

Finding the Fourth Proportional to 20,574.41, 28,392.19 and 11,621.61

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Solution

The fourth proportional to 20,574.41, 28,392.19 and 11,621.61 is: 16,037.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,574.41 : 28,392.19 = 11,621.61 : x
  2. Step 2: Convert to fraction form
    20,574.41/28,392.19 = 11,621.61/x
  3. Step 3: Cross multiply
    20,574.41x = 28,392.19 × 11,621.61
  4. Step 4: Simplify right side
    20,574.41x = 329,962,930.17
  5. Step 5: Solve for x
    x = 329,962,930.17/20,574.41
  6. Step 6: Final answer
    x = 16,037.54

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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.