Home / 21,603.60-29,804.20-13,224.96

Finding the Fourth Proportional to 21,603.60, 29,804.20 and 13,224.96

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Solution

The fourth proportional to 21,603.60, 29,804.20 and 13,224.96 is: 18,245.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,603.60 : 29,804.20 = 13,224.96 : x
  2. Step 2: Convert to fraction form
    21,603.60/29,804.20 = 13,224.96/x
  3. Step 3: Cross multiply
    21,603.60x = 29,804.20 × 13,224.96
  4. Step 4: Simplify right side
    21,603.60x = 394,159,352.83
  5. Step 5: Solve for x
    x = 394,159,352.83/21,603.60
  6. Step 6: Final answer
    x = 18,245.08

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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.