Home / 27,139.76-37,455.11-15,204.21

Finding the Fourth Proportional to 27,139.76, 37,455.11 and 15,204.21

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Solution

The fourth proportional to 27,139.76, 37,455.11 and 15,204.21 is: 20,983.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,139.76 : 37,455.11 = 15,204.21 : x
  2. Step 2: Convert to fraction form
    27,139.76/37,455.11 = 15,204.21/x
  3. Step 3: Cross multiply
    27,139.76x = 37,455.11 × 15,204.21
  4. Step 4: Simplify right side
    27,139.76x = 569,475,198.55
  5. Step 5: Solve for x
    x = 569,475,198.55/27,139.76
  6. Step 6: Final answer
    x = 20,983.06

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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.