Home / 20,898.84-28,840.32-11,467.56

Finding the Fourth Proportional to 20,898.84, 28,840.32 and 11,467.56

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Solution

The fourth proportional to 20,898.84, 28,840.32 and 11,467.56 is: 15,825.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,898.84 : 28,840.32 = 11,467.56 : x
  2. Step 2: Convert to fraction form
    20,898.84/28,840.32 = 11,467.56/x
  3. Step 3: Cross multiply
    20,898.84x = 28,840.32 × 11,467.56
  4. Step 4: Simplify right side
    20,898.84x = 330,728,100.02
  5. Step 5: Solve for x
    x = 330,728,100.02/20,898.84
  6. Step 6: Final answer
    x = 15,825.19

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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.