Home / 20,838.87-31,257.09-6,047.46

Finding the Fourth Proportional to 20,838.87, 31,257.09 and 6,047.46

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Solution

The fourth proportional to 20,838.87, 31,257.09 and 6,047.46 is: 9,070.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,838.87 : 31,257.09 = 6,047.46 : x
  2. Step 2: Convert to fraction form
    20,838.87/31,257.09 = 6,047.46/x
  3. Step 3: Cross multiply
    20,838.87x = 31,257.09 × 6,047.46
  4. Step 4: Simplify right side
    20,838.87x = 189,026,001.49
  5. Step 5: Solve for x
    x = 189,026,001.49/20,838.87
  6. Step 6: Final answer
    x = 9,070.84

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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.