Home / 20,528.90-30,793.38-4,946.52

Finding the Fourth Proportional to 20,528.90, 30,793.38 and 4,946.52

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Solution

The fourth proportional to 20,528.90, 30,793.38 and 4,946.52 is: 7,419.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,528.90 : 30,793.38 = 4,946.52 : x
  2. Step 2: Convert to fraction form
    20,528.90/30,793.38 = 4,946.52/x
  3. Step 3: Cross multiply
    20,528.90x = 30,793.38 × 4,946.52
  4. Step 4: Simplify right side
    20,528.90x = 152,320,045.31
  5. Step 5: Solve for x
    x = 152,320,045.31/20,528.90
  6. Step 6: Final answer
    x = 7,419.79

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.