Home / 38,136.93-52,628.28-21,141.09

Finding the Fourth Proportional to 38,136.93, 52,628.28 and 21,141.09

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Solution

The fourth proportional to 38,136.93, 52,628.28 and 21,141.09 is: 29,174.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,136.93 : 52,628.28 = 21,141.09 : x
  2. Step 2: Convert to fraction form
    38,136.93/52,628.28 = 21,141.09/x
  3. Step 3: Cross multiply
    38,136.93x = 52,628.28 × 21,141.09
  4. Step 4: Simplify right side
    38,136.93x = 1,112,619,204.03
  5. Step 5: Solve for x
    x = 1,112,619,204.03/38,136.93
  6. Step 6: Final answer
    x = 29,174.33

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Double scale
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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.