Home / 27,942.05-38,560.03-15,366.80

Finding the Fourth Proportional to 27,942.05, 38,560.03 and 15,366.80

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Solution

The fourth proportional to 27,942.05, 38,560.03 and 15,366.80 is: 21,206.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,942.05 : 38,560.03 = 15,366.80 : x
  2. Step 2: Convert to fraction form
    27,942.05/38,560.03 = 15,366.80/x
  3. Step 3: Cross multiply
    27,942.05x = 38,560.03 × 15,366.80
  4. Step 4: Simplify right side
    27,942.05x = 592,544,269.00
  5. Step 5: Solve for x
    x = 592,544,269.00/27,942.05
  6. Step 6: Final answer
    x = 21,206.18

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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.