Home / 19,623.40-29,436.90-7,934.20

Finding the Fourth Proportional to 19,623.40, 29,436.90 and 7,934.20

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Solution

The fourth proportional to 19,623.40, 29,436.90 and 7,934.20 is: 11,902.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,623.40 : 29,436.90 = 7,934.20 : x
  2. Step 2: Convert to fraction form
    19,623.40/29,436.90 = 7,934.20/x
  3. Step 3: Cross multiply
    19,623.40x = 29,436.90 × 7,934.20
  4. Step 4: Simplify right side
    19,623.40x = 233,558,251.98
  5. Step 5: Solve for x
    x = 233,558,251.98/19,623.40
  6. Step 6: Final answer
    x = 11,902.03

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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.