Home / 20,330.84-30,500.54-7,005.05

Finding the Fourth Proportional to 20,330.84, 30,500.54 and 7,005.05

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Solution

The fourth proportional to 20,330.84, 30,500.54 and 7,005.05 is: 10,509.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,330.84 : 30,500.54 = 7,005.05 : x
  2. Step 2: Convert to fraction form
    20,330.84/30,500.54 = 7,005.05/x
  3. Step 3: Cross multiply
    20,330.84x = 30,500.54 × 7,005.05
  4. Step 4: Simplify right side
    20,330.84x = 213,657,760.85
  5. Step 5: Solve for x
    x = 213,657,760.85/20,330.84
  6. Step 6: Final answer
    x = 10,509.05

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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.