Home / 20,840.94-31,293.81-16,907.58

Finding the Fourth Proportional to 20,840.94, 31,293.81 and 16,907.58

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Solution

The fourth proportional to 20,840.94, 31,293.81 and 16,907.58 is: 25,387.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,840.94 : 31,293.81 = 16,907.58 : x
  2. Step 2: Convert to fraction form
    20,840.94/31,293.81 = 16,907.58/x
  3. Step 3: Cross multiply
    20,840.94x = 31,293.81 × 16,907.58
  4. Step 4: Simplify right side
    20,840.94x = 529,102,596.08
  5. Step 5: Solve for x
    x = 529,102,596.08/20,840.94
  6. Step 6: Final answer
    x = 25,387.66

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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.