Home / 27,824.85-38,398.22-15,078.39

Finding the Fourth Proportional to 27,824.85, 38,398.22 and 15,078.39

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Solution

The fourth proportional to 27,824.85, 38,398.22 and 15,078.39 is: 20,808.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,824.85 : 38,398.22 = 15,078.39 : x
  2. Step 2: Convert to fraction form
    27,824.85/38,398.22 = 15,078.39/x
  3. Step 3: Cross multiply
    27,824.85x = 38,398.22 × 15,078.39
  4. Step 4: Simplify right side
    27,824.85x = 578,983,173.62
  5. Step 5: Solve for x
    x = 578,983,173.62/27,824.85
  6. Step 6: Final answer
    x = 20,808.13

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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.