Home / 27,620.88-38,112.21-26,219.76

Finding the Fourth Proportional to 27,620.88, 38,112.21 and 26,219.76

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Solution

The fourth proportional to 27,620.88, 38,112.21 and 26,219.76 is: 36,178.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,620.88 : 38,112.21 = 26,219.76 : x
  2. Step 2: Convert to fraction form
    27,620.88/38,112.21 = 26,219.76/x
  3. Step 3: Cross multiply
    27,620.88x = 38,112.21 × 26,219.76
  4. Step 4: Simplify right side
    27,620.88x = 999,292,999.27
  5. Step 5: Solve for x
    x = 999,292,999.27/27,620.88
  6. Step 6: Final answer
    x = 36,178.90

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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.