Home / 39,956.45-55,139.66-22,051.46

Finding the Fourth Proportional to 39,956.45, 55,139.66 and 22,051.46

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Solution

The fourth proportional to 39,956.45, 55,139.66 and 22,051.46 is: 30,430.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,956.45 : 55,139.66 = 22,051.46 : x
  2. Step 2: Convert to fraction form
    39,956.45/55,139.66 = 22,051.46/x
  3. Step 3: Cross multiply
    39,956.45x = 55,139.66 × 22,051.46
  4. Step 4: Simplify right side
    39,956.45x = 1,215,909,620.95
  5. Step 5: Solve for x
    x = 1,215,909,620.95/39,956.45
  6. Step 6: Final answer
    x = 30,430.88

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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.