Home / 27,789.24-38,348.70-15,213.72

Finding the Fourth Proportional to 27,789.24, 38,348.70 and 15,213.72

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Solution

The fourth proportional to 27,789.24, 38,348.70 and 15,213.72 is: 20,994.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,789.24 : 38,348.70 = 15,213.72 : x
  2. Step 2: Convert to fraction form
    27,789.24/38,348.70 = 15,213.72/x
  3. Step 3: Cross multiply
    27,789.24x = 38,348.70 × 15,213.72
  4. Step 4: Simplify right side
    27,789.24x = 583,426,384.16
  5. Step 5: Solve for x
    x = 583,426,384.16/27,789.24
  6. Step 6: Final answer
    x = 20,994.69

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.