Home / 27,309.53-37,690.74-15,375.20

Finding the Fourth Proportional to 27,309.53, 37,690.74 and 15,375.20

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Solution

The fourth proportional to 27,309.53, 37,690.74 and 15,375.20 is: 21,219.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,309.53 : 37,690.74 = 15,375.20 : x
  2. Step 2: Convert to fraction form
    27,309.53/37,690.74 = 15,375.20/x
  3. Step 3: Cross multiply
    27,309.53x = 37,690.74 × 15,375.20
  4. Step 4: Simplify right side
    27,309.53x = 579,502,665.65
  5. Step 5: Solve for x
    x = 579,502,665.65/27,309.53
  6. Step 6: Final answer
    x = 21,219.80

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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.