Home / 35,408.84-53,133.78-13,221.39

Finding the Fourth Proportional to 35,408.84, 53,133.78 and 13,221.39

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Solution

The fourth proportional to 35,408.84, 53,133.78 and 13,221.39 is: 19,839.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,408.84 : 53,133.78 = 13,221.39 : x
  2. Step 2: Convert to fraction form
    35,408.84/53,133.78 = 13,221.39/x
  3. Step 3: Cross multiply
    35,408.84x = 53,133.78 × 13,221.39
  4. Step 4: Simplify right side
    35,408.84x = 702,502,427.55
  5. Step 5: Solve for x
    x = 702,502,427.55/35,408.84
  6. Step 6: Final answer
    x = 19,839.75

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.