Home / 20,914.88-28,862.53-11,484.05

Finding the Fourth Proportional to 20,914.88, 28,862.53 and 11,484.05

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Solution

The fourth proportional to 20,914.88, 28,862.53 and 11,484.05 is: 15,847.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,914.88 : 28,862.53 = 11,484.05 : x
  2. Step 2: Convert to fraction form
    20,914.88/28,862.53 = 11,484.05/x
  3. Step 3: Cross multiply
    20,914.88x = 28,862.53 × 11,484.05
  4. Step 4: Simplify right side
    20,914.88x = 331,458,564.62
  5. Step 5: Solve for x
    x = 331,458,564.62/20,914.88
  6. Step 6: Final answer
    x = 15,847.98

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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.