Home / 23,163.63-31,965.05-13,603.34

Finding the Fourth Proportional to 23,163.63, 31,965.05 and 13,603.34

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Solution

The fourth proportional to 23,163.63, 31,965.05 and 13,603.34 is: 18,772.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,163.63 : 31,965.05 = 13,603.34 : x
  2. Step 2: Convert to fraction form
    23,163.63/31,965.05 = 13,603.34/x
  3. Step 3: Cross multiply
    23,163.63x = 31,965.05 × 13,603.34
  4. Step 4: Simplify right side
    23,163.63x = 434,831,215.43
  5. Step 5: Solve for x
    x = 434,831,215.43/23,163.63
  6. Step 6: Final answer
    x = 18,772.15

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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.