Home / 20,300.58-30,450.16-7,152.66

Finding the Fourth Proportional to 20,300.58, 30,450.16 and 7,152.66

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Solution

The fourth proportional to 20,300.58, 30,450.16 and 7,152.66 is: 10,728.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,300.58 : 30,450.16 = 7,152.66 : x
  2. Step 2: Convert to fraction form
    20,300.58/30,450.16 = 7,152.66/x
  3. Step 3: Cross multiply
    20,300.58x = 30,450.16 × 7,152.66
  4. Step 4: Simplify right side
    20,300.58x = 217,799,650.37
  5. Step 5: Solve for x
    x = 217,799,650.37/20,300.58
  6. Step 6: Final answer
    x = 10,728.74

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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.