Home / 38,122.57-52,609.26-21,127.09

Finding the Fourth Proportional to 38,122.57, 52,609.26 and 21,127.09

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Solution

The fourth proportional to 38,122.57, 52,609.26 and 21,127.09 is: 29,155.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,122.57 : 52,609.26 = 21,127.09 : x
  2. Step 2: Convert to fraction form
    38,122.57/52,609.26 = 21,127.09/x
  3. Step 3: Cross multiply
    38,122.57x = 52,609.26 × 21,127.09
  4. Step 4: Simplify right side
    38,122.57x = 1,111,480,570.85
  5. Step 5: Solve for x
    x = 1,111,480,570.85/38,122.57
  6. Step 6: Final answer
    x = 29,155.45

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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.