Home / 38,179.85-52,688.13-21,186.71

Finding the Fourth Proportional to 38,179.85, 52,688.13 and 21,186.71

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Solution

The fourth proportional to 38,179.85, 52,688.13 and 21,186.71 is: 29,237.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,179.85 : 52,688.13 = 21,186.71 : x
  2. Step 2: Convert to fraction form
    38,179.85/52,688.13 = 21,186.71/x
  3. Step 3: Cross multiply
    38,179.85x = 52,688.13 × 21,186.71
  4. Step 4: Simplify right side
    38,179.85x = 1,116,288,130.75
  5. Step 5: Solve for x
    x = 1,116,288,130.75/38,179.85
  6. Step 6: Final answer
    x = 29,237.62

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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.