Home / 20,875.53-31,317.14-6,836.34

Finding the Fourth Proportional to 20,875.53, 31,317.14 and 6,836.34

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Solution

The fourth proportional to 20,875.53, 31,317.14 and 6,836.34 is: 10,255.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,875.53 : 31,317.14 = 6,836.34 : x
  2. Step 2: Convert to fraction form
    20,875.53/31,317.14 = 6,836.34/x
  3. Step 3: Cross multiply
    20,875.53x = 31,317.14 × 6,836.34
  4. Step 4: Simplify right side
    20,875.53x = 214,094,616.87
  5. Step 5: Solve for x
    x = 214,094,616.87/20,875.53
  6. Step 6: Final answer
    x = 10,255.77

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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.