Home / 39,388.86-54,357.30-22,392.72

Finding the Fourth Proportional to 39,388.86, 54,357.30 and 22,392.72

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Solution

The fourth proportional to 39,388.86, 54,357.30 and 22,392.72 is: 30,902.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,388.86 : 54,357.30 = 22,392.72 : x
  2. Step 2: Convert to fraction form
    39,388.86/54,357.30 = 22,392.72/x
  3. Step 3: Cross multiply
    39,388.86x = 54,357.30 × 22,392.72
  4. Step 4: Simplify right side
    39,388.86x = 1,217,207,798.86
  5. Step 5: Solve for x
    x = 1,217,207,798.86/39,388.86
  6. Step 6: Final answer
    x = 30,902.34

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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.