Home / 30,128.20-41,573.93-16,699.12

Finding the Fourth Proportional to 30,128.20, 41,573.93 and 16,699.12

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Solution

The fourth proportional to 30,128.20, 41,573.93 and 16,699.12 is: 23,043.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,128.20 : 41,573.93 = 16,699.12 : x
  2. Step 2: Convert to fraction form
    30,128.20/41,573.93 = 16,699.12/x
  3. Step 3: Cross multiply
    30,128.20x = 41,573.93 × 16,699.12
  4. Step 4: Simplify right side
    30,128.20x = 694,247,858.51
  5. Step 5: Solve for x
    x = 694,247,858.51/30,128.20
  6. Step 6: Final answer
    x = 23,043.13

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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.