Home / 30,791.79-42,492.63-16,644.66

Finding the Fourth Proportional to 30,791.79, 42,492.63 and 16,644.66

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Solution

The fourth proportional to 30,791.79, 42,492.63 and 16,644.66 is: 22,969.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,791.79 : 42,492.63 = 16,644.66 : x
  2. Step 2: Convert to fraction form
    30,791.79/42,492.63 = 16,644.66/x
  3. Step 3: Cross multiply
    30,791.79x = 42,492.63 × 16,644.66
  4. Step 4: Simplify right side
    30,791.79x = 707,275,378.86
  5. Step 5: Solve for x
    x = 707,275,378.86/30,791.79
  6. Step 6: Final answer
    x = 22,969.61

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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.