Home / 27,057.67-37,338.84-15,120.72

Finding the Fourth Proportional to 27,057.67, 37,338.84 and 15,120.72

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Solution

The fourth proportional to 27,057.67, 37,338.84 and 15,120.72 is: 20,866.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,057.67 : 37,338.84 = 15,120.72 : x
  2. Step 2: Convert to fraction form
    27,057.67/37,338.84 = 15,120.72/x
  3. Step 3: Cross multiply
    27,057.67x = 37,338.84 × 15,120.72
  4. Step 4: Simplify right side
    27,057.67x = 564,590,144.76
  5. Step 5: Solve for x
    x = 564,590,144.76/27,057.67
  6. Step 6: Final answer
    x = 20,866.18

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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.