Home / 20,927.36-31,390.37-5,132.44

Finding the Fourth Proportional to 20,927.36, 31,390.37 and 5,132.44

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Solution

The fourth proportional to 20,927.36, 31,390.37 and 5,132.44 is: 7,698.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,927.36 : 31,390.37 = 5,132.44 : x
  2. Step 2: Convert to fraction form
    20,927.36/31,390.37 = 5,132.44/x
  3. Step 3: Cross multiply
    20,927.36x = 31,390.37 × 5,132.44
  4. Step 4: Simplify right side
    20,927.36x = 161,109,033.65
  5. Step 5: Solve for x
    x = 161,109,033.65/20,927.36
  6. Step 6: Final answer
    x = 7,698.49

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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.