Home / 33,990.78-46,911.69-21,248.07

Finding the Fourth Proportional to 33,990.78, 46,911.69 and 21,248.07

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Solution

The fourth proportional to 33,990.78, 46,911.69 and 21,248.07 is: 29,325.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,990.78 : 46,911.69 = 21,248.07 : x
  2. Step 2: Convert to fraction form
    33,990.78/46,911.69 = 21,248.07/x
  3. Step 3: Cross multiply
    33,990.78x = 46,911.69 × 21,248.07
  4. Step 4: Simplify right side
    33,990.78x = 996,782,872.94
  5. Step 5: Solve for x
    x = 996,782,872.94/33,990.78
  6. Step 6: Final answer
    x = 29,325.10

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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.