Home / 30,538.20-42,163.02-23,451.96

Finding the Fourth Proportional to 30,538.20, 42,163.02 and 23,451.96

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Solution

The fourth proportional to 30,538.20, 42,163.02 and 23,451.96 is: 32,379.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,538.20 : 42,163.02 = 23,451.96 : x
  2. Step 2: Convert to fraction form
    30,538.20/42,163.02 = 23,451.96/x
  3. Step 3: Cross multiply
    30,538.20x = 42,163.02 × 23,451.96
  4. Step 4: Simplify right side
    30,538.20x = 988,805,458.52
  5. Step 5: Solve for x
    x = 988,805,458.52/30,538.20
  6. Step 6: Final answer
    x = 32,379.30

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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.