Home / 38,122.91-52,609.75-21,127.44

Finding the Fourth Proportional to 38,122.91, 52,609.75 and 21,127.44

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Solution

The fourth proportional to 38,122.91, 52,609.75 and 21,127.44 is: 29,155.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,122.91 : 52,609.75 = 21,127.44 : x
  2. Step 2: Convert to fraction form
    38,122.91/52,609.75 = 21,127.44/x
  3. Step 3: Cross multiply
    38,122.91x = 52,609.75 × 21,127.44
  4. Step 4: Simplify right side
    38,122.91x = 1,111,509,230.90
  5. Step 5: Solve for x
    x = 1,111,509,230.90/38,122.91
  6. Step 6: Final answer
    x = 29,155.94

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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.