Home / 20,898.90-28,840.94-11,467.48

Finding the Fourth Proportional to 20,898.90, 28,840.94 and 11,467.48

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Solution

The fourth proportional to 20,898.90, 28,840.94 and 11,467.48 is: 15,825.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,898.90 : 28,840.94 = 11,467.48 : x
  2. Step 2: Convert to fraction form
    20,898.90/28,840.94 = 11,467.48/x
  3. Step 3: Cross multiply
    20,898.90x = 28,840.94 × 11,467.48
  4. Step 4: Simplify right side
    20,898.90x = 330,732,902.63
  5. Step 5: Solve for x
    x = 330,732,902.63/20,898.90
  6. Step 6: Final answer
    x = 15,825.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.