Home / 27,712.63-38,244.37-15,138.19

Finding the Fourth Proportional to 27,712.63, 38,244.37 and 15,138.19

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Solution

The fourth proportional to 27,712.63, 38,244.37 and 15,138.19 is: 20,891.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,712.63 : 38,244.37 = 15,138.19 : x
  2. Step 2: Convert to fraction form
    27,712.63/38,244.37 = 15,138.19/x
  3. Step 3: Cross multiply
    27,712.63x = 38,244.37 × 15,138.19
  4. Step 4: Simplify right side
    27,712.63x = 578,950,348.27
  5. Step 5: Solve for x
    x = 578,950,348.27/27,712.63
  6. Step 6: Final answer
    x = 20,891.21

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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.