Home / 28,244.22-38,974.86-15,495.36

Finding the Fourth Proportional to 28,244.22, 38,974.86 and 15,495.36

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Solution

The fourth proportional to 28,244.22, 38,974.86 and 15,495.36 is: 21,382.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,244.22 : 38,974.86 = 15,495.36 : x
  2. Step 2: Convert to fraction form
    28,244.22/38,974.86 = 15,495.36/x
  3. Step 3: Cross multiply
    28,244.22x = 38,974.86 × 15,495.36
  4. Step 4: Simplify right side
    28,244.22x = 603,929,486.65
  5. Step 5: Solve for x
    x = 603,929,486.65/28,244.22
  6. Step 6: Final answer
    x = 21,382.41

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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.