Home / 27,555.88-38,026.32-15,620.32

Finding the Fourth Proportional to 27,555.88, 38,026.32 and 15,620.32

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Solution

The fourth proportional to 27,555.88, 38,026.32 and 15,620.32 is: 21,555.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,555.88 : 38,026.32 = 15,620.32 : x
  2. Step 2: Convert to fraction form
    27,555.88/38,026.32 = 15,620.32/x
  3. Step 3: Cross multiply
    27,555.88x = 38,026.32 × 15,620.32
  4. Step 4: Simplify right side
    27,555.88x = 593,983,286.82
  5. Step 5: Solve for x
    x = 593,983,286.82/27,555.88
  6. Step 6: Final answer
    x = 21,555.59

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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.