Home / 27,986.58-38,621.44-15,411.33

Finding the Fourth Proportional to 27,986.58, 38,621.44 and 15,411.33

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Solution

The fourth proportional to 27,986.58, 38,621.44 and 15,411.33 is: 21,267.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,986.58 : 38,621.44 = 15,411.33 : x
  2. Step 2: Convert to fraction form
    27,986.58/38,621.44 = 15,411.33/x
  3. Step 3: Cross multiply
    27,986.58x = 38,621.44 × 15,411.33
  4. Step 4: Simplify right side
    27,986.58x = 595,207,776.18
  5. Step 5: Solve for x
    x = 595,207,776.18/27,986.58
  6. Step 6: Final answer
    x = 21,267.61

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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.