Home / 21,033.42-31,553.04-7,704.70

Finding the Fourth Proportional to 21,033.42, 31,553.04 and 7,704.70

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Solution

The fourth proportional to 21,033.42, 31,553.04 and 7,704.70 is: 11,558.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,033.42 : 31,553.04 = 7,704.70 : x
  2. Step 2: Convert to fraction form
    21,033.42/31,553.04 = 7,704.70/x
  3. Step 3: Cross multiply
    21,033.42x = 31,553.04 × 7,704.70
  4. Step 4: Simplify right side
    21,033.42x = 243,106,707.29
  5. Step 5: Solve for x
    x = 243,106,707.29/21,033.42
  6. Step 6: Final answer
    x = 11,558.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.