Home / 19,857.28-29,777.18-9,330.29

Finding the Fourth Proportional to 19,857.28, 29,777.18 and 9,330.29

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Solution

The fourth proportional to 19,857.28, 29,777.18 and 9,330.29 is: 13,991.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,857.28 : 29,777.18 = 9,330.29 : x
  2. Step 2: Convert to fraction form
    19,857.28/29,777.18 = 9,330.29/x
  3. Step 3: Cross multiply
    19,857.28x = 29,777.18 × 9,330.29
  4. Step 4: Simplify right side
    19,857.28x = 277,829,724.78
  5. Step 5: Solve for x
    x = 277,829,724.78/19,857.28
  6. Step 6: Final answer
    x = 13,991.33

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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.