Home / 39,120.56-58,671.26-21,332.04

Finding the Fourth Proportional to 39,120.56, 58,671.26 and 21,332.04

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Solution

The fourth proportional to 39,120.56, 58,671.26 and 21,332.04 is: 31,992.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,120.56 : 58,671.26 = 21,332.04 : x
  2. Step 2: Convert to fraction form
    39,120.56/58,671.26 = 21,332.04/x
  3. Step 3: Cross multiply
    39,120.56x = 58,671.26 × 21,332.04
  4. Step 4: Simplify right side
    39,120.56x = 1,251,577,558.51
  5. Step 5: Solve for x
    x = 1,251,577,558.51/39,120.56
  6. Step 6: Final answer
    x = 31,992.84

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.