Home / 33,312.31-45,949.29-21,356.71

Finding the Fourth Proportional to 33,312.31, 45,949.29 and 21,356.71

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Solution

The fourth proportional to 33,312.31, 45,949.29 and 21,356.71 is: 29,458.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,312.31 : 45,949.29 = 21,356.71 : x
  2. Step 2: Convert to fraction form
    33,312.31/45,949.29 = 21,356.71/x
  3. Step 3: Cross multiply
    33,312.31x = 45,949.29 × 21,356.71
  4. Step 4: Simplify right side
    33,312.31x = 981,325,661.24
  5. Step 5: Solve for x
    x = 981,325,661.24/33,312.31
  6. Step 6: Final answer
    x = 29,458.35

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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.