Home / 30,001.32-41,409.80-18,664.38

Finding the Fourth Proportional to 30,001.32, 41,409.80 and 18,664.38

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Solution

The fourth proportional to 30,001.32, 41,409.80 and 18,664.38 is: 25,761.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,001.32 : 41,409.80 = 18,664.38 : x
  2. Step 2: Convert to fraction form
    30,001.32/41,409.80 = 18,664.38/x
  3. Step 3: Cross multiply
    30,001.32x = 41,409.80 × 18,664.38
  4. Step 4: Simplify right side
    30,001.32x = 772,888,149.60
  5. Step 5: Solve for x
    x = 772,888,149.60/30,001.32
  6. Step 6: Final answer
    x = 25,761.80

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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.