Home / 20,369.52-30,544.20-7,219.98

Finding the Fourth Proportional to 20,369.52, 30,544.20 and 7,219.98

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Solution

The fourth proportional to 20,369.52, 30,544.20 and 7,219.98 is: 10,826.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,369.52 : 30,544.20 = 7,219.98 : x
  2. Step 2: Convert to fraction form
    20,369.52/30,544.20 = 7,219.98/x
  3. Step 3: Cross multiply
    20,369.52x = 30,544.20 × 7,219.98
  4. Step 4: Simplify right side
    20,369.52x = 220,528,513.12
  5. Step 5: Solve for x
    x = 220,528,513.12/20,369.52
  6. Step 6: Final answer
    x = 10,826.40

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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.