Home / 39,682.22-54,762.53-21,777.86

Finding the Fourth Proportional to 39,682.22, 54,762.53 and 21,777.86

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Solution

The fourth proportional to 39,682.22, 54,762.53 and 21,777.86 is: 30,054.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,682.22 : 54,762.53 = 21,777.86 : x
  2. Step 2: Convert to fraction form
    39,682.22/54,762.53 = 21,777.86/x
  3. Step 3: Cross multiply
    39,682.22x = 54,762.53 × 21,777.86
  4. Step 4: Simplify right side
    39,682.22x = 1,192,610,862.10
  5. Step 5: Solve for x
    x = 1,192,610,862.10/39,682.22
  6. Step 6: Final answer
    x = 30,054.04

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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.