Home / 19,171.40-28,730.10-15,229.40

Finding the Fourth Proportional to 19,171.40, 28,730.10 and 15,229.40

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Solution

The fourth proportional to 19,171.40, 28,730.10 and 15,229.40 is: 22,822.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,171.40 : 28,730.10 = 15,229.40 : x
  2. Step 2: Convert to fraction form
    19,171.40/28,730.10 = 15,229.40/x
  3. Step 3: Cross multiply
    19,171.40x = 28,730.10 × 15,229.40
  4. Step 4: Simplify right side
    19,171.40x = 437,542,184.94
  5. Step 5: Solve for x
    x = 437,542,184.94/19,171.40
  6. Step 6: Final answer
    x = 22,822.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.