Home / 30,467.48-42,049.94-18,534.56

Finding the Fourth Proportional to 30,467.48, 42,049.94 and 18,534.56

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Solution

The fourth proportional to 30,467.48, 42,049.94 and 18,534.56 is: 25,580.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,467.48 : 42,049.94 = 18,534.56 : x
  2. Step 2: Convert to fraction form
    30,467.48/42,049.94 = 18,534.56/x
  3. Step 3: Cross multiply
    30,467.48x = 42,049.94 × 18,534.56
  4. Step 4: Simplify right side
    30,467.48x = 779,376,833.00
  5. Step 5: Solve for x
    x = 779,376,833.00/30,467.48
  6. Step 6: Final answer
    x = 25,580.62

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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.