Home / 27,689.19-38,197.77-18,124.86

Finding the Fourth Proportional to 27,689.19, 38,197.77 and 18,124.86

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Solution

The fourth proportional to 27,689.19, 38,197.77 and 18,124.86 is: 25,003.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,689.19 : 38,197.77 = 18,124.86 : x
  2. Step 2: Convert to fraction form
    27,689.19/38,197.77 = 18,124.86/x
  3. Step 3: Cross multiply
    27,689.19x = 38,197.77 × 18,124.86
  4. Step 4: Simplify right side
    27,689.19x = 692,329,233.56
  5. Step 5: Solve for x
    x = 692,329,233.56/27,689.19
  6. Step 6: Final answer
    x = 25,003.59

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Half scale
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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.