Home / 39,720.88-54,776.20-26,828.48

Finding the Fourth Proportional to 39,720.88, 54,776.20 and 26,828.48

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Solution

The fourth proportional to 39,720.88, 54,776.20 and 26,828.48 is: 36,997.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,720.88 : 54,776.20 = 26,828.48 : x
  2. Step 2: Convert to fraction form
    39,720.88/54,776.20 = 26,828.48/x
  3. Step 3: Cross multiply
    39,720.88x = 54,776.20 × 26,828.48
  4. Step 4: Simplify right side
    39,720.88x = 1,469,562,186.18
  5. Step 5: Solve for x
    x = 1,469,562,186.18/39,720.88
  6. Step 6: Final answer
    x = 36,997.22

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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.