Home / 20,676.26-28,533.53-15,492.96

Finding the Fourth Proportional to 20,676.26, 28,533.53 and 15,492.96

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Solution

The fourth proportional to 20,676.26, 28,533.53 and 15,492.96 is: 21,380.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,676.26 : 28,533.53 = 15,492.96 : x
  2. Step 2: Convert to fraction form
    20,676.26/28,533.53 = 15,492.96/x
  3. Step 3: Cross multiply
    20,676.26x = 28,533.53 × 15,492.96
  4. Step 4: Simplify right side
    20,676.26x = 442,068,877.68
  5. Step 5: Solve for x
    x = 442,068,877.68/20,676.26
  6. Step 6: Final answer
    x = 21,380.50

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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.