Home / 30,906.76-42,650.80-17,477.56

Finding the Fourth Proportional to 30,906.76, 42,650.80 and 17,477.56

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Solution

The fourth proportional to 30,906.76, 42,650.80 and 17,477.56 is: 24,118.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,906.76 : 42,650.80 = 17,477.56 : x
  2. Step 2: Convert to fraction form
    30,906.76/42,650.80 = 17,477.56/x
  3. Step 3: Cross multiply
    30,906.76x = 42,650.80 × 17,477.56
  4. Step 4: Simplify right side
    30,906.76x = 745,431,916.05
  5. Step 5: Solve for x
    x = 745,431,916.05/30,906.76
  6. Step 6: Final answer
    x = 24,118.73

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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.