Home / 20,634.48-28,476.36-11,682.36

Finding the Fourth Proportional to 20,634.48, 28,476.36 and 11,682.36

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Solution

The fourth proportional to 20,634.48, 28,476.36 and 11,682.36 is: 16,122.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,634.48 : 28,476.36 = 11,682.36 : x
  2. Step 2: Convert to fraction form
    20,634.48/28,476.36 = 11,682.36/x
  3. Step 3: Cross multiply
    20,634.48x = 28,476.36 × 11,682.36
  4. Step 4: Simplify right side
    20,634.48x = 332,671,089.01
  5. Step 5: Solve for x
    x = 332,671,089.01/20,634.48
  6. Step 6: Final answer
    x = 16,122.10

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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.