Home / 30,934.09-42,689.04-16,786.93

Finding the Fourth Proportional to 30,934.09, 42,689.04 and 16,786.93

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Solution

The fourth proportional to 30,934.09, 42,689.04 and 16,786.93 is: 23,165.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,934.09 : 42,689.04 = 16,786.93 : x
  2. Step 2: Convert to fraction form
    30,934.09/42,689.04 = 16,786.93/x
  3. Step 3: Cross multiply
    30,934.09x = 42,689.04 × 16,786.93
  4. Step 4: Simplify right side
    30,934.09x = 716,618,146.55
  5. Step 5: Solve for x
    x = 716,618,146.55/30,934.09
  6. Step 6: Final answer
    x = 23,165.97

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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.