Home / 39,426.90-54,410.41-21,522.86

Finding the Fourth Proportional to 39,426.90, 54,410.41 and 21,522.86

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Solution

The fourth proportional to 39,426.90, 54,410.41 and 21,522.86 is: 29,702.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,426.90 : 54,410.41 = 21,522.86 : x
  2. Step 2: Convert to fraction form
    39,426.90/54,410.41 = 21,522.86/x
  3. Step 3: Cross multiply
    39,426.90x = 54,410.41 × 21,522.86
  4. Step 4: Simplify right side
    39,426.90x = 1,171,067,636.97
  5. Step 5: Solve for x
    x = 1,171,067,636.97/39,426.90
  6. Step 6: Final answer
    x = 29,702.25

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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.