Home / 36,641.60-50,555.76-21,115.40

Finding the Fourth Proportional to 36,641.60, 50,555.76 and 21,115.40

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Solution

The fourth proportional to 36,641.60, 50,555.76 and 21,115.40 is: 29,133.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,641.60 : 50,555.76 = 21,115.40 : x
  2. Step 2: Convert to fraction form
    36,641.60/50,555.76 = 21,115.40/x
  3. Step 3: Cross multiply
    36,641.60x = 50,555.76 × 21,115.40
  4. Step 4: Simplify right side
    36,641.60x = 1,067,504,762.74
  5. Step 5: Solve for x
    x = 1,067,504,762.74/36,641.60
  6. Step 6: Final answer
    x = 29,133.68

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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.