Home / 21,935.72-30,271.22-11,864.18

Finding the Fourth Proportional to 21,935.72, 30,271.22 and 11,864.18

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Solution

The fourth proportional to 21,935.72, 30,271.22 and 11,864.18 is: 16,372.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,935.72 : 30,271.22 = 11,864.18 : x
  2. Step 2: Convert to fraction form
    21,935.72/30,271.22 = 11,864.18/x
  3. Step 3: Cross multiply
    21,935.72x = 30,271.22 × 11,864.18
  4. Step 4: Simplify right side
    21,935.72x = 359,143,202.90
  5. Step 5: Solve for x
    x = 359,143,202.90/21,935.72
  6. Step 6: Final answer
    x = 16,372.53

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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.