Home / 39,566.72-54,600.36-21,661.76

Finding the Fourth Proportional to 39,566.72, 54,600.36 and 21,661.76

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Solution

The fourth proportional to 39,566.72, 54,600.36 and 21,661.76 is: 29,892.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,566.72 : 54,600.36 = 21,661.76 : x
  2. Step 2: Convert to fraction form
    39,566.72/54,600.36 = 21,661.76/x
  3. Step 3: Cross multiply
    39,566.72x = 54,600.36 × 21,661.76
  4. Step 4: Simplify right side
    39,566.72x = 1,182,739,894.23
  5. Step 5: Solve for x
    x = 1,182,739,894.23/39,566.72
  6. Step 6: Final answer
    x = 29,892.29

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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.