Home / 27,115.70-37,420.18-15,178.93

Finding the Fourth Proportional to 27,115.70, 37,420.18 and 15,178.93

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Solution

The fourth proportional to 27,115.70, 37,420.18 and 15,178.93 is: 20,947.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,115.70 : 37,420.18 = 15,178.93 : x
  2. Step 2: Convert to fraction form
    27,115.70/37,420.18 = 15,178.93/x
  3. Step 3: Cross multiply
    27,115.70x = 37,420.18 × 15,178.93
  4. Step 4: Simplify right side
    27,115.70x = 567,998,161.31
  5. Step 5: Solve for x
    x = 567,998,161.31/27,115.70
  6. Step 6: Final answer
    x = 20,947.21

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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.