Home / 20,288.54-28,017.36-19,184.11

Finding the Fourth Proportional to 20,288.54, 28,017.36 and 19,184.11

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Solution

The fourth proportional to 20,288.54, 28,017.36 and 19,184.11 is: 26,492.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,288.54 : 28,017.36 = 19,184.11 : x
  2. Step 2: Convert to fraction form
    20,288.54/28,017.36 = 19,184.11/x
  3. Step 3: Cross multiply
    20,288.54x = 28,017.36 × 19,184.11
  4. Step 4: Simplify right side
    20,288.54x = 537,488,046.11
  5. Step 5: Solve for x
    x = 537,488,046.11/20,288.54
  6. Step 6: Final answer
    x = 26,492.20

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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.