Home / 39,356.72-54,310.70-21,451.37

Finding the Fourth Proportional to 39,356.72, 54,310.70 and 21,451.37

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Solution

The fourth proportional to 39,356.72, 54,310.70 and 21,451.37 is: 29,602.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,356.72 : 54,310.70 = 21,451.37 : x
  2. Step 2: Convert to fraction form
    39,356.72/54,310.70 = 21,451.37/x
  3. Step 3: Cross multiply
    39,356.72x = 54,310.70 × 21,451.37
  4. Step 4: Simplify right side
    39,356.72x = 1,165,038,702.73
  5. Step 5: Solve for x
    x = 1,165,038,702.73/39,356.72
  6. Step 6: Final answer
    x = 29,602.03

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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.