Home / 27,980.45-38,612.08-15,233.39

Finding the Fourth Proportional to 27,980.45, 38,612.08 and 15,233.39

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Solution

The fourth proportional to 27,980.45, 38,612.08 and 15,233.39 is: 21,021.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,980.45 : 38,612.08 = 15,233.39 : x
  2. Step 2: Convert to fraction form
    27,980.45/38,612.08 = 15,233.39/x
  3. Step 3: Cross multiply
    27,980.45x = 38,612.08 × 15,233.39
  4. Step 4: Simplify right side
    27,980.45x = 588,192,873.35
  5. Step 5: Solve for x
    x = 588,192,873.35/27,980.45
  6. Step 6: Final answer
    x = 21,021.57

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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.