Home / 38,136.44-52,628.18-21,140.76

Finding the Fourth Proportional to 38,136.44, 52,628.18 and 21,140.76

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Solution

The fourth proportional to 38,136.44, 52,628.18 and 21,140.76 is: 29,174.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,136.44 : 52,628.18 = 21,140.76 : x
  2. Step 2: Convert to fraction form
    38,136.44/52,628.18 = 21,140.76/x
  3. Step 3: Cross multiply
    38,136.44x = 52,628.18 × 21,140.76
  4. Step 4: Simplify right side
    38,136.44x = 1,112,599,722.62
  5. Step 5: Solve for x
    x = 1,112,599,722.62/38,136.44
  6. Step 6: Final answer
    x = 29,174.19

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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.