Home / 27,658.23-38,171.28-16,909.39

Finding the Fourth Proportional to 27,658.23, 38,171.28 and 16,909.39

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Solution

The fourth proportional to 27,658.23, 38,171.28 and 16,909.39 is: 23,336.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,658.23 : 38,171.28 = 16,909.39 : x
  2. Step 2: Convert to fraction form
    27,658.23/38,171.28 = 16,909.39/x
  3. Step 3: Cross multiply
    27,658.23x = 38,171.28 × 16,909.39
  4. Step 4: Simplify right side
    27,658.23x = 645,453,060.32
  5. Step 5: Solve for x
    x = 645,453,060.32/27,658.23
  6. Step 6: Final answer
    x = 23,336.74

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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.