Home / 39,278.24-54,203.71-21,373.31

Finding the Fourth Proportional to 39,278.24, 54,203.71 and 21,373.31

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Solution

The fourth proportional to 39,278.24, 54,203.71 and 21,373.31 is: 29,495.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,278.24 : 54,203.71 = 21,373.31 : x
  2. Step 2: Convert to fraction form
    39,278.24/54,203.71 = 21,373.31/x
  3. Step 3: Cross multiply
    39,278.24x = 54,203.71 × 21,373.31
  4. Step 4: Simplify right side
    39,278.24x = 1,158,512,696.98
  5. Step 5: Solve for x
    x = 1,158,512,696.98/39,278.24
  6. Step 6: Final answer
    x = 29,495.03

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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.