Home / 29,579.17-40,813.31-18,828.37

Finding the Fourth Proportional to 29,579.17, 40,813.31 and 18,828.37

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Solution

The fourth proportional to 29,579.17, 40,813.31 and 18,828.37 is: 25,979.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,579.17 : 40,813.31 = 18,828.37 : x
  2. Step 2: Convert to fraction form
    29,579.17/40,813.31 = 18,828.37/x
  3. Step 3: Cross multiply
    29,579.17x = 40,813.31 × 18,828.37
  4. Step 4: Simplify right side
    29,579.17x = 768,448,101.60
  5. Step 5: Solve for x
    x = 768,448,101.60/29,579.17
  6. Step 6: Final answer
    x = 25,979.37

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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.