Home / 21,935.62-30,271.04-11,864.05

Finding the Fourth Proportional to 21,935.62, 30,271.04 and 11,864.05

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Solution

The fourth proportional to 21,935.62, 30,271.04 and 11,864.05 is: 16,372.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,935.62 : 30,271.04 = 11,864.05 : x
  2. Step 2: Convert to fraction form
    21,935.62/30,271.04 = 11,864.05/x
  3. Step 3: Cross multiply
    21,935.62x = 30,271.04 × 11,864.05
  4. Step 4: Simplify right side
    21,935.62x = 359,136,921.44
  5. Step 5: Solve for x
    x = 359,136,921.44/21,935.62
  6. Step 6: Final answer
    x = 16,372.32

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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.