Home / 39,279.13-54,204.74-21,373.82

Finding the Fourth Proportional to 39,279.13, 54,204.74 and 21,373.82

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Solution

The fourth proportional to 39,279.13, 54,204.74 and 21,373.82 is: 29,495.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,279.13 : 54,204.74 = 21,373.82 : x
  2. Step 2: Convert to fraction form
    39,279.13/54,204.74 = 21,373.82/x
  3. Step 3: Cross multiply
    39,279.13x = 54,204.74 × 21,373.82
  4. Step 4: Simplify right side
    39,279.13x = 1,158,562,566.34
  5. Step 5: Solve for x
    x = 1,158,562,566.34/39,279.13
  6. Step 6: Final answer
    x = 29,495.63

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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.