Home / 20,863.48-31,295.28-6,072.75

Finding the Fourth Proportional to 20,863.48, 31,295.28 and 6,072.75

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Solution

The fourth proportional to 20,863.48, 31,295.28 and 6,072.75 is: 9,109.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,863.48 : 31,295.28 = 6,072.75 : x
  2. Step 2: Convert to fraction form
    20,863.48/31,295.28 = 6,072.75/x
  3. Step 3: Cross multiply
    20,863.48x = 31,295.28 × 6,072.75
  4. Step 4: Simplify right side
    20,863.48x = 190,048,411.62
  5. Step 5: Solve for x
    x = 190,048,411.62/20,863.48
  6. Step 6: Final answer
    x = 9,109.14

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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.