Home / 27,119.60-37,398.75-21,149.09

Finding the Fourth Proportional to 27,119.60, 37,398.75 and 21,149.09

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Solution

The fourth proportional to 27,119.60, 37,398.75 and 21,149.09 is: 29,165.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,119.60 : 37,398.75 = 21,149.09 : x
  2. Step 2: Convert to fraction form
    27,119.60/37,398.75 = 21,149.09/x
  3. Step 3: Cross multiply
    27,119.60x = 37,398.75 × 21,149.09
  4. Step 4: Simplify right side
    27,119.60x = 790,949,289.77
  5. Step 5: Solve for x
    x = 790,949,289.77/27,119.60
  6. Step 6: Final answer
    x = 29,165.23

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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.