Home / 20,159.54-30,239.32-16,689.50

Finding the Fourth Proportional to 20,159.54, 30,239.32 and 16,689.50

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Solution

The fourth proportional to 20,159.54, 30,239.32 and 16,689.50 is: 25,034.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,159.54 : 30,239.32 = 16,689.50 : x
  2. Step 2: Convert to fraction form
    20,159.54/30,239.32 = 16,689.50/x
  3. Step 3: Cross multiply
    20,159.54x = 30,239.32 × 16,689.50
  4. Step 4: Simplify right side
    20,159.54x = 504,679,131.14
  5. Step 5: Solve for x
    x = 504,679,131.14/20,159.54
  6. Step 6: Final answer
    x = 25,034.26

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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.