Home / 27,309.66-37,690.95-15,375.34

Finding the Fourth Proportional to 27,309.66, 37,690.95 and 15,375.34

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Solution

The fourth proportional to 27,309.66, 37,690.95 and 15,375.34 is: 21,220.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,309.66 : 37,690.95 = 15,375.34 : x
  2. Step 2: Convert to fraction form
    27,309.66/37,690.95 = 15,375.34/x
  3. Step 3: Cross multiply
    27,309.66x = 37,690.95 × 15,375.34
  4. Step 4: Simplify right side
    27,309.66x = 579,511,171.17
  5. Step 5: Solve for x
    x = 579,511,171.17/27,309.66
  6. Step 6: Final answer
    x = 21,220.01

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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.