Home / 39,170.17-54,054-21,265.02

Finding the Fourth Proportional to 39,170.17, 54,054 and 21,265.02

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Solution

The fourth proportional to 39,170.17, 54,054 and 21,265.02 is: 29,345.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,170.17 : 54,054 = 21,265.02 : x
  2. Step 2: Convert to fraction form
    39,170.17/54,054 = 21,265.02/x
  3. Step 3: Cross multiply
    39,170.17x = 54,054 × 21,265.02
  4. Step 4: Simplify right side
    39,170.17x = 1,149,459,391.08
  5. Step 5: Solve for x
    x = 1,149,459,391.08/39,170.17
  6. Step 6: Final answer
    x = 29,345.27

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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.