Home / 39,260.32-54,179.94-21,355.72

Finding the Fourth Proportional to 39,260.32, 54,179.94 and 21,355.72

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Solution

The fourth proportional to 39,260.32, 54,179.94 and 21,355.72 is: 29,471.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,260.32 : 54,179.94 = 21,355.72 : x
  2. Step 2: Convert to fraction form
    39,260.32/54,179.94 = 21,355.72/x
  3. Step 3: Cross multiply
    39,260.32x = 54,179.94 × 21,355.72
  4. Step 4: Simplify right side
    39,260.32x = 1,157,051,628.26
  5. Step 5: Solve for x
    x = 1,157,051,628.26/39,260.32
  6. Step 6: Final answer
    x = 29,471.27

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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.