Home / 22,203.08-30,639.30-12,131.36

Finding the Fourth Proportional to 22,203.08, 30,639.30 and 12,131.36

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Solution

The fourth proportional to 22,203.08, 30,639.30 and 12,131.36 is: 16,740.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,203.08 : 30,639.30 = 12,131.36 : x
  2. Step 2: Convert to fraction form
    22,203.08/30,639.30 = 12,131.36/x
  3. Step 3: Cross multiply
    22,203.08x = 30,639.30 × 12,131.36
  4. Step 4: Simplify right side
    22,203.08x = 371,696,378.45
  5. Step 5: Solve for x
    x = 371,696,378.45/22,203.08
  6. Step 6: Final answer
    x = 16,740.76

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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.