Home / 23,039.20-31,785.78-15,085.96

Finding the Fourth Proportional to 23,039.20, 31,785.78 and 15,085.96

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Solution

The fourth proportional to 23,039.20, 31,785.78 and 15,085.96 is: 20,813.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,039.20 : 31,785.78 = 15,085.96 : x
  2. Step 2: Convert to fraction form
    23,039.20/31,785.78 = 15,085.96/x
  3. Step 3: Cross multiply
    23,039.20x = 31,785.78 × 15,085.96
  4. Step 4: Simplify right side
    23,039.20x = 479,519,005.65
  5. Step 5: Solve for x
    x = 479,519,005.65/23,039.20
  6. Step 6: Final answer
    x = 20,813.18

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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.