Home / 29,403.12-40,578.12-16,827.60

Finding the Fourth Proportional to 29,403.12, 40,578.12 and 16,827.60

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Solution

The fourth proportional to 29,403.12, 40,578.12 and 16,827.60 is: 23,223.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,403.12 : 40,578.12 = 16,827.60 : x
  2. Step 2: Convert to fraction form
    29,403.12/40,578.12 = 16,827.60/x
  3. Step 3: Cross multiply
    29,403.12x = 40,578.12 × 16,827.60
  4. Step 4: Simplify right side
    29,403.12x = 682,832,372.11
  5. Step 5: Solve for x
    x = 682,832,372.11/29,403.12
  6. Step 6: Final answer
    x = 23,223.13

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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.