Home / 20,542.66-28,349.72-11,590.13

Finding the Fourth Proportional to 20,542.66, 28,349.72 and 11,590.13

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Solution

The fourth proportional to 20,542.66, 28,349.72 and 11,590.13 is: 15,994.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,542.66 : 28,349.72 = 11,590.13 : x
  2. Step 2: Convert to fraction form
    20,542.66/28,349.72 = 11,590.13/x
  3. Step 3: Cross multiply
    20,542.66x = 28,349.72 × 11,590.13
  4. Step 4: Simplify right side
    20,542.66x = 328,576,898.36
  5. Step 5: Solve for x
    x = 328,576,898.36/20,542.66
  6. Step 6: Final answer
    x = 15,994.86

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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.