Home / 39,289.56-54,182.31-30,322.86

Finding the Fourth Proportional to 39,289.56, 54,182.31 and 30,322.86

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Solution

The fourth proportional to 39,289.56, 54,182.31 and 30,322.86 is: 41,816.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,289.56 : 54,182.31 = 30,322.86 : x
  2. Step 2: Convert to fraction form
    39,289.56/54,182.31 = 30,322.86/x
  3. Step 3: Cross multiply
    39,289.56x = 54,182.31 × 30,322.86
  4. Step 4: Simplify right side
    39,289.56x = 1,642,962,600.61
  5. Step 5: Solve for x
    x = 1,642,962,600.61/39,289.56
  6. Step 6: Final answer
    x = 41,816.77

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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.