Home / 27,651.31-38,160.13-15,555.58

Finding the Fourth Proportional to 27,651.31, 38,160.13 and 15,555.58

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Solution

The fourth proportional to 27,651.31, 38,160.13 and 15,555.58 is: 21,467.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,651.31 : 38,160.13 = 15,555.58 : x
  2. Step 2: Convert to fraction form
    27,651.31/38,160.13 = 15,555.58/x
  3. Step 3: Cross multiply
    27,651.31x = 38,160.13 × 15,555.58
  4. Step 4: Simplify right side
    27,651.31x = 593,602,764.22
  5. Step 5: Solve for x
    x = 593,602,764.22/27,651.31
  6. Step 6: Final answer
    x = 21,467.44

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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.