Home / 33,869.79-46,763.14-21,142.36

Finding the Fourth Proportional to 33,869.79, 46,763.14 and 21,142.36

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Solution

The fourth proportional to 33,869.79, 46,763.14 and 21,142.36 is: 29,190.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,869.79 : 46,763.14 = 21,142.36 : x
  2. Step 2: Convert to fraction form
    33,869.79/46,763.14 = 21,142.36/x
  3. Step 3: Cross multiply
    33,869.79x = 46,763.14 × 21,142.36
  4. Step 4: Simplify right side
    33,869.79x = 988,683,140.61
  5. Step 5: Solve for x
    x = 988,683,140.61/33,869.79
  6. Step 6: Final answer
    x = 29,190.71

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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.