Home / 27,960.88-38,585.98-15,385.56

Finding the Fourth Proportional to 27,960.88, 38,585.98 and 15,385.56

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Solution

The fourth proportional to 27,960.88, 38,585.98 and 15,385.56 is: 21,232.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,960.88 : 38,585.98 = 15,385.56 : x
  2. Step 2: Convert to fraction form
    27,960.88/38,585.98 = 15,385.56/x
  3. Step 3: Cross multiply
    27,960.88x = 38,585.98 × 15,385.56
  4. Step 4: Simplify right side
    27,960.88x = 593,666,910.45
  5. Step 5: Solve for x
    x = 593,666,910.45/27,960.88
  6. Step 6: Final answer
    x = 21,232.05

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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.