Home / 27,785.62-38,343.21-15,852.82

Finding the Fourth Proportional to 27,785.62, 38,343.21 and 15,852.82

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Solution

The fourth proportional to 27,785.62, 38,343.21 and 15,852.82 is: 21,876.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,785.62 : 38,343.21 = 15,852.82 : x
  2. Step 2: Convert to fraction form
    27,785.62/38,343.21 = 15,852.82/x
  3. Step 3: Cross multiply
    27,785.62x = 38,343.21 × 15,852.82
  4. Step 4: Simplify right side
    27,785.62x = 607,848,006.35
  5. Step 5: Solve for x
    x = 607,848,006.35/27,785.62
  6. Step 6: Final answer
    x = 21,876.35

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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.