Home / 21,453.36-29,603.21-11,890.83

Finding the Fourth Proportional to 21,453.36, 29,603.21 and 11,890.83

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Solution

The fourth proportional to 21,453.36, 29,603.21 and 11,890.83 is: 16,408.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,453.36 : 29,603.21 = 11,890.83 : x
  2. Step 2: Convert to fraction form
    21,453.36/29,603.21 = 11,890.83/x
  3. Step 3: Cross multiply
    21,453.36x = 29,603.21 × 11,890.83
  4. Step 4: Simplify right side
    21,453.36x = 352,006,678.11
  5. Step 5: Solve for x
    x = 352,006,678.11/21,453.36
  6. Step 6: Final answer
    x = 16,408.00

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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.