Home / 33,338.69-45,985.70-21,383.09

Finding the Fourth Proportional to 33,338.69, 45,985.70 and 21,383.09

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Solution

The fourth proportional to 33,338.69, 45,985.70 and 21,383.09 is: 29,494.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,338.69 : 45,985.70 = 21,383.09 : x
  2. Step 2: Convert to fraction form
    33,338.69/45,985.70 = 21,383.09/x
  3. Step 3: Cross multiply
    33,338.69x = 45,985.70 × 21,383.09
  4. Step 4: Simplify right side
    33,338.69x = 983,316,361.81
  5. Step 5: Solve for x
    x = 983,316,361.81/33,338.69
  6. Step 6: Final answer
    x = 29,494.75

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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.