Home / 38,172.49-52,678.09-21,176.73

Finding the Fourth Proportional to 38,172.49, 52,678.09 and 21,176.73

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Solution

The fourth proportional to 38,172.49, 52,678.09 and 21,176.73 is: 29,223.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,172.49 : 52,678.09 = 21,176.73 : x
  2. Step 2: Convert to fraction form
    38,172.49/52,678.09 = 21,176.73/x
  3. Step 3: Cross multiply
    38,172.49x = 52,678.09 × 21,176.73
  4. Step 4: Simplify right side
    38,172.49x = 1,115,549,688.85
  5. Step 5: Solve for x
    x = 1,115,549,688.85/38,172.49
  6. Step 6: Final answer
    x = 29,223.92

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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.