Home / 39,494.43-54,503.10-21,590.55

Finding the Fourth Proportional to 39,494.43, 54,503.10 and 21,590.55

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Solution

The fourth proportional to 39,494.43, 54,503.10 and 21,590.55 is: 29,795.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,494.43 : 54,503.10 = 21,590.55 : x
  2. Step 2: Convert to fraction form
    39,494.43/54,503.10 = 21,590.55/x
  3. Step 3: Cross multiply
    39,494.43x = 54,503.10 × 21,590.55
  4. Step 4: Simplify right side
    39,494.43x = 1,176,751,905.71
  5. Step 5: Solve for x
    x = 1,176,751,905.71/39,494.43
  6. Step 6: Final answer
    x = 29,795.39

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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.