Home / 27,457.20-37,889.47-15,519.82

Finding the Fourth Proportional to 27,457.20, 37,889.47 and 15,519.82

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Solution

The fourth proportional to 27,457.20, 37,889.47 and 15,519.82 is: 21,416.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,457.20 : 37,889.47 = 15,519.82 : x
  2. Step 2: Convert to fraction form
    27,457.20/37,889.47 = 15,519.82/x
  3. Step 3: Cross multiply
    27,457.20x = 37,889.47 × 15,519.82
  4. Step 4: Simplify right side
    27,457.20x = 588,037,754.30
  5. Step 5: Solve for x
    x = 588,037,754.30/27,457.20
  6. Step 6: Final answer
    x = 21,416.52

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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.