Home / 22,091.77-30,487.71-12,660.36

Finding the Fourth Proportional to 22,091.77, 30,487.71 and 12,660.36

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Solution

The fourth proportional to 22,091.77, 30,487.71 and 12,660.36 is: 17,471.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,091.77 : 30,487.71 = 12,660.36 : x
  2. Step 2: Convert to fraction form
    22,091.77/30,487.71 = 12,660.36/x
  3. Step 3: Cross multiply
    22,091.77x = 30,487.71 × 12,660.36
  4. Step 4: Simplify right side
    22,091.77x = 385,985,384.18
  5. Step 5: Solve for x
    x = 385,985,384.18/22,091.77
  6. Step 6: Final answer
    x = 17,471.91

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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.