Home / 21,935.36-30,270.70-11,863.81

Finding the Fourth Proportional to 21,935.36, 30,270.70 and 11,863.81

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Solution

The fourth proportional to 21,935.36, 30,270.70 and 11,863.81 is: 16,372.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,935.36 : 30,270.70 = 11,863.81 : x
  2. Step 2: Convert to fraction form
    21,935.36/30,270.70 = 11,863.81/x
  3. Step 3: Cross multiply
    21,935.36x = 30,270.70 × 11,863.81
  4. Step 4: Simplify right side
    21,935.36x = 359,125,622.69
  5. Step 5: Solve for x
    x = 359,125,622.69/21,935.36
  6. Step 6: Final answer
    x = 16,372.00

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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.