Home / 39,590.25-54,635.45-21,685.11

Finding the Fourth Proportional to 39,590.25, 54,635.45 and 21,685.11

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Solution

The fourth proportional to 39,590.25, 54,635.45 and 21,685.11 is: 29,925.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,590.25 : 54,635.45 = 21,685.11 : x
  2. Step 2: Convert to fraction form
    39,590.25/54,635.45 = 21,685.11/x
  3. Step 3: Cross multiply
    39,590.25x = 54,635.45 × 21,685.11
  4. Step 4: Simplify right side
    39,590.25x = 1,184,775,634.72
  5. Step 5: Solve for x
    x = 1,184,775,634.72/39,590.25
  6. Step 6: Final answer
    x = 29,925.94

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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.