Home / 30,103.10-41,543.78-18,166.24

Finding the Fourth Proportional to 30,103.10, 41,543.78 and 18,166.24

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Solution

The fourth proportional to 30,103.10, 41,543.78 and 18,166.24 is: 25,070.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,103.10 : 41,543.78 = 18,166.24 : x
  2. Step 2: Convert to fraction form
    30,103.10/41,543.78 = 18,166.24/x
  3. Step 3: Cross multiply
    30,103.10x = 41,543.78 × 18,166.24
  4. Step 4: Simplify right side
    30,103.10x = 754,694,277.99
  5. Step 5: Solve for x
    x = 754,694,277.99/30,103.10
  6. Step 6: Final answer
    x = 25,070.32

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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.