Home / 29,410.29-40,579.79-21,456.90

Finding the Fourth Proportional to 29,410.29, 40,579.79 and 21,456.90

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Solution

The fourth proportional to 29,410.29, 40,579.79 and 21,456.90 is: 29,605.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,410.29 : 40,579.79 = 21,456.90 : x
  2. Step 2: Convert to fraction form
    29,410.29/40,579.79 = 21,456.90/x
  3. Step 3: Cross multiply
    29,410.29x = 40,579.79 × 21,456.90
  4. Step 4: Simplify right side
    29,410.29x = 870,716,388.77
  5. Step 5: Solve for x
    x = 870,716,388.77/29,410.29
  6. Step 6: Final answer
    x = 29,605.84

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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.