Home / 19,823.20-27,370.36-12,761.92

Finding the Fourth Proportional to 19,823.20, 27,370.36 and 12,761.92

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Solution

The fourth proportional to 19,823.20, 27,370.36 and 12,761.92 is: 17,620.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,823.20 : 27,370.36 = 12,761.92 : x
  2. Step 2: Convert to fraction form
    19,823.20/27,370.36 = 12,761.92/x
  3. Step 3: Cross multiply
    19,823.20x = 27,370.36 × 12,761.92
  4. Step 4: Simplify right side
    19,823.20x = 349,298,344.69
  5. Step 5: Solve for x
    x = 349,298,344.69/19,823.20
  6. Step 6: Final answer
    x = 17,620.68

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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.