Home / 27,720.48-38,254.32-17,107.68

Finding the Fourth Proportional to 27,720.48, 38,254.32 and 17,107.68

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Solution

The fourth proportional to 27,720.48, 38,254.32 and 17,107.68 is: 23,608.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,720.48 : 38,254.32 = 17,107.68 : x
  2. Step 2: Convert to fraction form
    27,720.48/38,254.32 = 17,107.68/x
  3. Step 3: Cross multiply
    27,720.48x = 38,254.32 × 17,107.68
  4. Step 4: Simplify right side
    27,720.48x = 654,442,665.18
  5. Step 5: Solve for x
    x = 654,442,665.18/27,720.48
  6. Step 6: Final answer
    x = 23,608.63

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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.