Home / 27,615.57-38,108.14-15,677.29

Finding the Fourth Proportional to 27,615.57, 38,108.14 and 15,677.29

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Solution

The fourth proportional to 27,615.57, 38,108.14 and 15,677.29 is: 21,633.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,615.57 : 38,108.14 = 15,677.29 : x
  2. Step 2: Convert to fraction form
    27,615.57/38,108.14 = 15,677.29/x
  3. Step 3: Cross multiply
    27,615.57x = 38,108.14 × 15,677.29
  4. Step 4: Simplify right side
    27,615.57x = 597,432,362.14
  5. Step 5: Solve for x
    x = 597,432,362.14/27,615.57
  6. Step 6: Final answer
    x = 21,633.90

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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.