Home / 20,350.49-30,528.80-7,202.99

Finding the Fourth Proportional to 20,350.49, 30,528.80 and 7,202.99

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Solution

The fourth proportional to 20,350.49, 30,528.80 and 7,202.99 is: 10,805.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,350.49 : 30,528.80 = 7,202.99 : x
  2. Step 2: Convert to fraction form
    20,350.49/30,528.80 = 7,202.99/x
  3. Step 3: Cross multiply
    20,350.49x = 30,528.80 × 7,202.99
  4. Step 4: Simplify right side
    20,350.49x = 219,898,605.10
  5. Step 5: Solve for x
    x = 219,898,605.10/20,350.49
  6. Step 6: Final answer
    x = 10,805.57

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1.5x scale

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.