Home / 20,205.30-30,302.55-7,056.30

Finding the Fourth Proportional to 20,205.30, 30,302.55 and 7,056.30

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Solution

The fourth proportional to 20,205.30, 30,302.55 and 7,056.30 is: 10,582.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,205.30 : 30,302.55 = 7,056.30 : x
  2. Step 2: Convert to fraction form
    20,205.30/30,302.55 = 7,056.30/x
  3. Step 3: Cross multiply
    20,205.30x = 30,302.55 × 7,056.30
  4. Step 4: Simplify right side
    20,205.30x = 213,823,883.57
  5. Step 5: Solve for x
    x = 213,823,883.57/20,205.30
  6. Step 6: Final answer
    x = 10,582.56

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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.