Home / 19,126.20-28,640.70-18,251.40

Finding the Fourth Proportional to 19,126.20, 28,640.70 and 18,251.40

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Solution

The fourth proportional to 19,126.20, 28,640.70 and 18,251.40 is: 27,330.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,126.20 : 28,640.70 = 18,251.40 : x
  2. Step 2: Convert to fraction form
    19,126.20/28,640.70 = 18,251.40/x
  3. Step 3: Cross multiply
    19,126.20x = 28,640.70 × 18,251.40
  4. Step 4: Simplify right side
    19,126.20x = 522,732,871.98
  5. Step 5: Solve for x
    x = 522,732,871.98/19,126.20
  6. Step 6: Final answer
    x = 27,330.72

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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.