Home / 30,593.67-42,234.09-20,518.42

Finding the Fourth Proportional to 30,593.67, 42,234.09 and 20,518.42

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Solution

The fourth proportional to 30,593.67, 42,234.09 and 20,518.42 is: 28,325.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,593.67 : 42,234.09 = 20,518.42 : x
  2. Step 2: Convert to fraction form
    30,593.67/42,234.09 = 20,518.42/x
  3. Step 3: Cross multiply
    30,593.67x = 42,234.09 × 20,518.42
  4. Step 4: Simplify right side
    30,593.67x = 866,576,796.94
  5. Step 5: Solve for x
    x = 866,576,796.94/30,593.67
  6. Step 6: Final answer
    x = 28,325.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.