Home / 20,841.94-31,295.31-16,908.58

Finding the Fourth Proportional to 20,841.94, 31,295.31 and 16,908.58

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Solution

The fourth proportional to 20,841.94, 31,295.31 and 16,908.58 is: 25,389.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,841.94 : 31,295.31 = 16,908.58 : x
  2. Step 2: Convert to fraction form
    20,841.94/31,295.31 = 16,908.58/x
  3. Step 3: Cross multiply
    20,841.94x = 31,295.31 × 16,908.58
  4. Step 4: Simplify right side
    20,841.94x = 529,159,252.76
  5. Step 5: Solve for x
    x = 529,159,252.76/20,841.94
  6. Step 6: Final answer
    x = 25,389.16

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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.