Home / 27,619.34-38,116.84-15,686.42

Finding the Fourth Proportional to 27,619.34, 38,116.84 and 15,686.42

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Solution

The fourth proportional to 27,619.34, 38,116.84 and 15,686.42 is: 21,648.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,619.34 : 38,116.84 = 15,686.42 : x
  2. Step 2: Convert to fraction form
    27,619.34/38,116.84 = 15,686.42/x
  3. Step 3: Cross multiply
    27,619.34x = 38,116.84 × 15,686.42
  4. Step 4: Simplify right side
    27,619.34x = 597,916,761.31
  5. Step 5: Solve for x
    x = 597,916,761.31/27,619.34
  6. Step 6: Final answer
    x = 21,648.48

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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.