Home / 39,239.08-54,146.45-21,776.85

Finding the Fourth Proportional to 39,239.08, 54,146.45 and 21,776.85

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Solution

The fourth proportional to 39,239.08, 54,146.45 and 21,776.85 is: 30,050.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,239.08 : 54,146.45 = 21,776.85 : x
  2. Step 2: Convert to fraction form
    39,239.08/54,146.45 = 21,776.85/x
  3. Step 3: Cross multiply
    39,239.08x = 54,146.45 × 21,776.85
  4. Step 4: Simplify right side
    39,239.08x = 1,179,139,174.12
  5. Step 5: Solve for x
    x = 1,179,139,174.12/39,239.08
  6. Step 6: Final answer
    x = 30,050.12

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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.