Home / 27,905.96-38,505.30-15,966.66

Finding the Fourth Proportional to 27,905.96, 38,505.30 and 15,966.66

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Solution

The fourth proportional to 27,905.96, 38,505.30 and 15,966.66 is: 22,031.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,905.96 : 38,505.30 = 15,966.66 : x
  2. Step 2: Convert to fraction form
    27,905.96/38,505.30 = 15,966.66/x
  3. Step 3: Cross multiply
    27,905.96x = 38,505.30 × 15,966.66
  4. Step 4: Simplify right side
    27,905.96x = 614,801,033.30
  5. Step 5: Solve for x
    x = 614,801,033.30/27,905.96
  6. Step 6: Final answer
    x = 22,031.17

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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.