Home / 19,117.92-28,789.17-16,681.80

Finding the Fourth Proportional to 19,117.92, 28,789.17 and 16,681.80

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Solution

The fourth proportional to 19,117.92, 28,789.17 and 16,681.80 is: 25,120.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,117.92 : 28,789.17 = 16,681.80 : x
  2. Step 2: Convert to fraction form
    19,117.92/28,789.17 = 16,681.80/x
  3. Step 3: Cross multiply
    19,117.92x = 28,789.17 × 16,681.80
  4. Step 4: Simplify right side
    19,117.92x = 480,255,176.11
  5. Step 5: Solve for x
    x = 480,255,176.11/19,117.92
  6. Step 6: Final answer
    x = 25,120.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.