Home / 36,012.88-49,689.84-20,896.78

Finding the Fourth Proportional to 36,012.88, 49,689.84 and 20,896.78

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Solution

The fourth proportional to 36,012.88, 49,689.84 and 20,896.78 is: 28,832.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,012.88 : 49,689.84 = 20,896.78 : x
  2. Step 2: Convert to fraction form
    36,012.88/49,689.84 = 20,896.78/x
  3. Step 3: Cross multiply
    36,012.88x = 49,689.84 × 20,896.78
  4. Step 4: Simplify right side
    36,012.88x = 1,038,357,654.72
  5. Step 5: Solve for x
    x = 1,038,357,654.72/36,012.88
  6. Step 6: Final answer
    x = 28,832.95

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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.