Home / 55,005.70-82,511.38-21,271.62

Finding the Fourth Proportional to 55,005.70, 82,511.38 and 21,271.62

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Solution

The fourth proportional to 55,005.70, 82,511.38 and 21,271.62 is: 31,908.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,005.70 : 82,511.38 = 21,271.62 : x
  2. Step 2: Convert to fraction form
    55,005.70/82,511.38 = 21,271.62/x
  3. Step 3: Cross multiply
    55,005.70x = 82,511.38 × 21,271.62
  4. Step 4: Simplify right side
    55,005.70x = 1,755,150,721.04
  5. Step 5: Solve for x
    x = 1,755,150,721.04/55,005.70
  6. Step 6: Final answer
    x = 31,908.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.