Home / 27,609.40-38,090.96-15,665.82

Finding the Fourth Proportional to 27,609.40, 38,090.96 and 15,665.82

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Solution

The fourth proportional to 27,609.40, 38,090.96 and 15,665.82 is: 21,613.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,609.40 : 38,090.96 = 15,665.82 : x
  2. Step 2: Convert to fraction form
    27,609.40/38,090.96 = 15,665.82/x
  3. Step 3: Cross multiply
    27,609.40x = 38,090.96 × 15,665.82
  4. Step 4: Simplify right side
    27,609.40x = 596,725,932.53
  5. Step 5: Solve for x
    x = 596,725,932.53/27,609.40
  6. Step 6: Final answer
    x = 21,613.15

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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.