Home / 19,782.38-27,299.72-10,830.43

Finding the Fourth Proportional to 19,782.38, 27,299.72 and 10,830.43

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Solution

The fourth proportional to 19,782.38, 27,299.72 and 10,830.43 is: 14,946.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,782.38 : 27,299.72 = 10,830.43 : x
  2. Step 2: Convert to fraction form
    19,782.38/27,299.72 = 10,830.43/x
  3. Step 3: Cross multiply
    19,782.38x = 27,299.72 × 10,830.43
  4. Step 4: Simplify right side
    19,782.38x = 295,667,706.48
  5. Step 5: Solve for x
    x = 295,667,706.48/19,782.38
  6. Step 6: Final answer
    x = 14,946.01

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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.