Home / 27,630.59-38,144.70-18,603.47

Finding the Fourth Proportional to 27,630.59, 38,144.70 and 18,603.47

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Solution

The fourth proportional to 27,630.59, 38,144.70 and 18,603.47 is: 25,682.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,630.59 : 38,144.70 = 18,603.47 : x
  2. Step 2: Convert to fraction form
    27,630.59/38,144.70 = 18,603.47/x
  3. Step 3: Cross multiply
    27,630.59x = 38,144.70 × 18,603.47
  4. Step 4: Simplify right side
    27,630.59x = 709,623,591.39
  5. Step 5: Solve for x
    x = 709,623,591.39/27,630.59
  6. Step 6: Final answer
    x = 25,682.54

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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.