Home / 27,125.78-37,408.59-18,612.88

Finding the Fourth Proportional to 27,125.78, 37,408.59 and 18,612.88

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Solution

The fourth proportional to 27,125.78, 37,408.59 and 18,612.88 is: 25,668.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,125.78 : 37,408.59 = 18,612.88 : x
  2. Step 2: Convert to fraction form
    27,125.78/37,408.59 = 18,612.88/x
  3. Step 3: Cross multiply
    27,125.78x = 37,408.59 × 18,612.88
  4. Step 4: Simplify right side
    27,125.78x = 696,281,503.12
  5. Step 5: Solve for x
    x = 696,281,503.12/27,125.78
  6. Step 6: Final answer
    x = 25,668.63

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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.