Home / 20,148.36-30,236.31-7,000.62

Finding the Fourth Proportional to 20,148.36, 30,236.31 and 7,000.62

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Solution

The fourth proportional to 20,148.36, 30,236.31 and 7,000.62 is: 10,505.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,148.36 : 30,236.31 = 7,000.62 : x
  2. Step 2: Convert to fraction form
    20,148.36/30,236.31 = 7,000.62/x
  3. Step 3: Cross multiply
    20,148.36x = 30,236.31 × 7,000.62
  4. Step 4: Simplify right side
    20,148.36x = 211,672,916.51
  5. Step 5: Solve for x
    x = 211,672,916.51/20,148.36
  6. Step 6: Final answer
    x = 10,505.71

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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.