Home / 30,314.44-41,814.90-20,866.60

Finding the Fourth Proportional to 30,314.44, 41,814.90 and 20,866.60

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Solution

The fourth proportional to 30,314.44, 41,814.90 and 20,866.60 is: 28,782.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,314.44 : 41,814.90 = 20,866.60 : x
  2. Step 2: Convert to fraction form
    30,314.44/41,814.90 = 20,866.60/x
  3. Step 3: Cross multiply
    30,314.44x = 41,814.90 × 20,866.60
  4. Step 4: Simplify right side
    30,314.44x = 872,534,792.34
  5. Step 5: Solve for x
    x = 872,534,792.34/30,314.44
  6. Step 6: Final answer
    x = 28,782.81

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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.