Home / 30,791.56-42,492.66-16,644.68

Finding the Fourth Proportional to 30,791.56, 42,492.66 and 16,644.68

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Solution

The fourth proportional to 30,791.56, 42,492.66 and 16,644.68 is: 22,969.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,791.56 : 42,492.66 = 16,644.68 : x
  2. Step 2: Convert to fraction form
    30,791.56/42,492.66 = 16,644.68/x
  3. Step 3: Cross multiply
    30,791.56x = 42,492.66 × 16,644.68
  4. Step 4: Simplify right side
    30,791.56x = 707,276,728.05
  5. Step 5: Solve for x
    x = 707,276,728.05/30,791.56
  6. Step 6: Final answer
    x = 22,969.82

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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.