Home / 20,108.65-30,027.56-16,418.08

Finding the Fourth Proportional to 20,108.65, 30,027.56 and 16,418.08

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Solution

The fourth proportional to 20,108.65, 30,027.56 and 16,418.08 is: 24,516.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,108.65 : 30,027.56 = 16,418.08 : x
  2. Step 2: Convert to fraction form
    20,108.65/30,027.56 = 16,418.08/x
  3. Step 3: Cross multiply
    20,108.65x = 30,027.56 × 16,418.08
  4. Step 4: Simplify right side
    20,108.65x = 492,994,882.28
  5. Step 5: Solve for x
    x = 492,994,882.28/20,108.65
  6. Step 6: Final answer
    x = 24,516.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.