Home / 20,914.52-28,862.78-11,483.80

Finding the Fourth Proportional to 20,914.52, 28,862.78 and 11,483.80

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Solution

The fourth proportional to 20,914.52, 28,862.78 and 11,483.80 is: 15,848.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,914.52 : 28,862.78 = 11,483.80 : x
  2. Step 2: Convert to fraction form
    20,914.52/28,862.78 = 11,483.80/x
  3. Step 3: Cross multiply
    20,914.52x = 28,862.78 × 11,483.80
  4. Step 4: Simplify right side
    20,914.52x = 331,454,392.96
  5. Step 5: Solve for x
    x = 331,454,392.96/20,914.52
  6. Step 6: Final answer
    x = 15,848.05

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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.