Home / 39,511.85-54,525.56-21,606.66

Finding the Fourth Proportional to 39,511.85, 54,525.56 and 21,606.66

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Solution

The fourth proportional to 39,511.85, 54,525.56 and 21,606.66 is: 29,816.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,511.85 : 54,525.56 = 21,606.66 : x
  2. Step 2: Convert to fraction form
    39,511.85/54,525.56 = 21,606.66/x
  3. Step 3: Cross multiply
    39,511.85x = 54,525.56 × 21,606.66
  4. Step 4: Simplify right side
    39,511.85x = 1,178,115,128.20
  5. Step 5: Solve for x
    x = 1,178,115,128.20/39,511.85
  6. Step 6: Final answer
    x = 29,816.76

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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.