Home / 39,428.96-54,410.41-21,523.94

Finding the Fourth Proportional to 39,428.96, 54,410.41 and 21,523.94

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Solution

The fourth proportional to 39,428.96, 54,410.41 and 21,523.94 is: 29,702.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,428.96 : 54,410.41 = 21,523.94 : x
  2. Step 2: Convert to fraction form
    39,428.96/54,410.41 = 21,523.94/x
  3. Step 3: Cross multiply
    39,428.96x = 54,410.41 × 21,523.94
  4. Step 4: Simplify right side
    39,428.96x = 1,171,126,074.35
  5. Step 5: Solve for x
    x = 1,171,126,074.35/39,428.96
  6. Step 6: Final answer
    x = 29,702.18

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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.