Home / 38,175.87-52,681.64-21,180.03

Finding the Fourth Proportional to 38,175.87, 52,681.64 and 21,180.03

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Solution

The fourth proportional to 38,175.87, 52,681.64 and 21,180.03 is: 29,227.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,175.87 : 52,681.64 = 21,180.03 : x
  2. Step 2: Convert to fraction form
    38,175.87/52,681.64 = 21,180.03/x
  3. Step 3: Cross multiply
    38,175.87x = 52,681.64 × 21,180.03
  4. Step 4: Simplify right side
    38,175.87x = 1,115,798,609.75
  5. Step 5: Solve for x
    x = 1,115,798,609.75/38,175.87
  6. Step 6: Final answer
    x = 29,227.85

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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.