Home / 26,191.78-36,141.69-15,435.99

Finding the Fourth Proportional to 26,191.78, 36,141.69 and 15,435.99

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Solution

The fourth proportional to 26,191.78, 36,141.69 and 15,435.99 is: 21,299.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,191.78 : 36,141.69 = 15,435.99 : x
  2. Step 2: Convert to fraction form
    26,191.78/36,141.69 = 15,435.99/x
  3. Step 3: Cross multiply
    26,191.78x = 36,141.69 × 15,435.99
  4. Step 4: Simplify right side
    26,191.78x = 557,882,765.42
  5. Step 5: Solve for x
    x = 557,882,765.42/26,191.78
  6. Step 6: Final answer
    x = 21,299.92

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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.