Home / 21,408.03-29,557.53-13,344.87

Finding the Fourth Proportional to 21,408.03, 29,557.53 and 13,344.87

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Solution

The fourth proportional to 21,408.03, 29,557.53 and 13,344.87 is: 18,424.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,408.03 : 29,557.53 = 13,344.87 : x
  2. Step 2: Convert to fraction form
    21,408.03/29,557.53 = 13,344.87/x
  3. Step 3: Cross multiply
    21,408.03x = 29,557.53 × 13,344.87
  4. Step 4: Simplify right side
    21,408.03x = 394,441,395.37
  5. Step 5: Solve for x
    x = 394,441,395.37/21,408.03
  6. Step 6: Final answer
    x = 18,424.93

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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.