Home / 33,336.69-45,982.95-21,381.09

Finding the Fourth Proportional to 33,336.69, 45,982.95 and 21,381.09

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Solution

The fourth proportional to 33,336.69, 45,982.95 and 21,381.09 is: 29,491.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,336.69 : 45,982.95 = 21,381.09 : x
  2. Step 2: Convert to fraction form
    33,336.69/45,982.95 = 21,381.09/x
  3. Step 3: Cross multiply
    33,336.69x = 45,982.95 × 21,381.09
  4. Step 4: Simplify right side
    33,336.69x = 983,165,255.60
  5. Step 5: Solve for x
    x = 983,165,255.60/33,336.69
  6. Step 6: Final answer
    x = 29,491.99

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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.