Home / 38,161.53-52,666.14-21,171.25

Finding the Fourth Proportional to 38,161.53, 52,666.14 and 21,171.25

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Solution

The fourth proportional to 38,161.53, 52,666.14 and 21,171.25 is: 29,218.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,161.53 : 52,666.14 = 21,171.25 : x
  2. Step 2: Convert to fraction form
    38,161.53/52,666.14 = 21,171.25/x
  3. Step 3: Cross multiply
    38,161.53x = 52,666.14 × 21,171.25
  4. Step 4: Simplify right side
    38,161.53x = 1,115,007,884.81
  5. Step 5: Solve for x
    x = 1,115,007,884.81/38,161.53
  6. Step 6: Final answer
    x = 29,218.12

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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.