Home / 30,997.02-42,775.57-16,849.77

Finding the Fourth Proportional to 30,997.02, 42,775.57 and 16,849.77

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Solution

The fourth proportional to 30,997.02, 42,775.57 and 16,849.77 is: 23,252.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,997.02 : 42,775.57 = 16,849.77 : x
  2. Step 2: Convert to fraction form
    30,997.02/42,775.57 = 16,849.77/x
  3. Step 3: Cross multiply
    30,997.02x = 42,775.57 × 16,849.77
  4. Step 4: Simplify right side
    30,997.02x = 720,758,516.12
  5. Step 5: Solve for x
    x = 720,758,516.12/30,997.02
  6. Step 6: Final answer
    x = 23,252.51

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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.