Home / 20,783.94-31,175.91-5,201.57

Finding the Fourth Proportional to 20,783.94, 31,175.91 and 5,201.57

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Solution

The fourth proportional to 20,783.94, 31,175.91 and 5,201.57 is: 7,802.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,783.94 : 31,175.91 = 5,201.57 : x
  2. Step 2: Convert to fraction form
    20,783.94/31,175.91 = 5,201.57/x
  3. Step 3: Cross multiply
    20,783.94x = 31,175.91 × 5,201.57
  4. Step 4: Simplify right side
    20,783.94x = 162,163,522.30
  5. Step 5: Solve for x
    x = 162,163,522.30/20,783.94
  6. Step 6: Final answer
    x = 7,802.35

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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.