Home / 27,119.33-37,423.55-15,789.12

Finding the Fourth Proportional to 27,119.33, 37,423.55 and 15,789.12

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Solution

The fourth proportional to 27,119.33, 37,423.55 and 15,789.12 is: 21,788.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,119.33 : 37,423.55 = 15,789.12 : x
  2. Step 2: Convert to fraction form
    27,119.33/37,423.55 = 15,789.12/x
  3. Step 3: Cross multiply
    27,119.33x = 37,423.55 × 15,789.12
  4. Step 4: Simplify right side
    27,119.33x = 590,884,921.78
  5. Step 5: Solve for x
    x = 590,884,921.78/27,119.33
  6. Step 6: Final answer
    x = 21,788.33

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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.