Home / 19,930.88-27,498.39-11,315.63

Finding the Fourth Proportional to 19,930.88, 27,498.39 and 11,315.63

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Solution

The fourth proportional to 19,930.88, 27,498.39 and 11,315.63 is: 15,612.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,930.88 : 27,498.39 = 11,315.63 : x
  2. Step 2: Convert to fraction form
    19,930.88/27,498.39 = 11,315.63/x
  3. Step 3: Cross multiply
    19,930.88x = 27,498.39 × 11,315.63
  4. Step 4: Simplify right side
    19,930.88x = 311,161,606.84
  5. Step 5: Solve for x
    x = 311,161,606.84/19,930.88
  6. Step 6: Final answer
    x = 15,612.04

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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.