Home / 39,278.35-54,204.24-21,373.36

Finding the Fourth Proportional to 39,278.35, 54,204.24 and 21,373.36

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Solution

The fourth proportional to 39,278.35, 54,204.24 and 21,373.36 is: 29,495.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,278.35 : 54,204.24 = 21,373.36 : x
  2. Step 2: Convert to fraction form
    39,278.35/54,204.24 = 21,373.36/x
  3. Step 3: Cross multiply
    39,278.35x = 54,204.24 × 21,373.36
  4. Step 4: Simplify right side
    39,278.35x = 1,158,526,735.05
  5. Step 5: Solve for x
    x = 1,158,526,735.05/39,278.35
  6. Step 6: Final answer
    x = 29,495.30

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1.5x scale

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.