Home / 29,550.12-40,814.34-21,579.56

Finding the Fourth Proportional to 29,550.12, 40,814.34 and 21,579.56

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Solution

The fourth proportional to 29,550.12, 40,814.34 and 21,579.56 is: 29,805.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,550.12 : 40,814.34 = 21,579.56 : x
  2. Step 2: Convert to fraction form
    29,550.12/40,814.34 = 21,579.56/x
  3. Step 3: Cross multiply
    29,550.12x = 40,814.34 × 21,579.56
  4. Step 4: Simplify right side
    29,550.12x = 880,755,498.89
  5. Step 5: Solve for x
    x = 880,755,498.89/29,550.12
  6. Step 6: Final answer
    x = 29,805.48

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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.