Home / 39,180.86-54,069.70-21,276.17

Finding the Fourth Proportional to 39,180.86, 54,069.70 and 21,276.17

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Solution

The fourth proportional to 39,180.86, 54,069.70 and 21,276.17 is: 29,361.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,180.86 : 54,069.70 = 21,276.17 : x
  2. Step 2: Convert to fraction form
    39,180.86/54,069.70 = 21,276.17/x
  3. Step 3: Cross multiply
    39,180.86x = 54,069.70 × 21,276.17
  4. Step 4: Simplify right side
    39,180.86x = 1,150,396,108.00
  5. Step 5: Solve for x
    x = 1,150,396,108.00/39,180.86
  6. Step 6: Final answer
    x = 29,361.17

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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.