Home / 19,475.43-26,881.61-11,520.42

Finding the Fourth Proportional to 19,475.43, 26,881.61 and 11,520.42

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Solution

The fourth proportional to 19,475.43, 26,881.61 and 11,520.42 is: 15,901.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,475.43 : 26,881.61 = 11,520.42 : x
  2. Step 2: Convert to fraction form
    19,475.43/26,881.61 = 11,520.42/x
  3. Step 3: Cross multiply
    19,475.43x = 26,881.61 × 11,520.42
  4. Step 4: Simplify right side
    19,475.43x = 309,687,379.87
  5. Step 5: Solve for x
    x = 309,687,379.87/19,475.43
  6. Step 6: Final answer
    x = 15,901.44

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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.