Home / 20,698.70-31,047.89-5,907.60

Finding the Fourth Proportional to 20,698.70, 31,047.89 and 5,907.60

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Solution

The fourth proportional to 20,698.70, 31,047.89 and 5,907.60 is: 8,861.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,698.70 : 31,047.89 = 5,907.60 : x
  2. Step 2: Convert to fraction form
    20,698.70/31,047.89 = 5,907.60/x
  3. Step 3: Cross multiply
    20,698.70x = 31,047.89 × 5,907.60
  4. Step 4: Simplify right side
    20,698.70x = 183,418,485.43
  5. Step 5: Solve for x
    x = 183,418,485.43/20,698.70
  6. Step 6: Final answer
    x = 8,861.36

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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.