Home / 38,144.68-52,639.65-21,148.87

Finding the Fourth Proportional to 38,144.68, 52,639.65 and 21,148.87

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Solution

The fourth proportional to 38,144.68, 52,639.65 and 21,148.87 is: 29,185.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,144.68 : 52,639.65 = 21,148.87 : x
  2. Step 2: Convert to fraction form
    38,144.68/52,639.65 = 21,148.87/x
  3. Step 3: Cross multiply
    38,144.68x = 52,639.65 × 21,148.87
  4. Step 4: Simplify right side
    38,144.68x = 1,113,269,114.70
  5. Step 5: Solve for x
    x = 1,113,269,114.70/38,144.68
  6. Step 6: Final answer
    x = 29,185.44

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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.