Home / 27,666.06-38,181-15,730.56

Finding the Fourth Proportional to 27,666.06, 38,181 and 15,730.56

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Solution

The fourth proportional to 27,666.06, 38,181 and 15,730.56 is: 21,709.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,666.06 : 38,181 = 15,730.56 : x
  2. Step 2: Convert to fraction form
    27,666.06/38,181 = 15,730.56/x
  3. Step 3: Cross multiply
    27,666.06x = 38,181 × 15,730.56
  4. Step 4: Simplify right side
    27,666.06x = 600,608,511.36
  5. Step 5: Solve for x
    x = 600,608,511.36/27,666.06
  6. Step 6: Final answer
    x = 21,709.22

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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.