Home / 30,571.37-45,852.32-12,561.42

Finding the Fourth Proportional to 30,571.37, 45,852.32 and 12,561.42

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Solution

The fourth proportional to 30,571.37, 45,852.32 and 12,561.42 is: 18,840.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,571.37 : 45,852.32 = 12,561.42 : x
  2. Step 2: Convert to fraction form
    30,571.37/45,852.32 = 12,561.42/x
  3. Step 3: Cross multiply
    30,571.37x = 45,852.32 × 12,561.42
  4. Step 4: Simplify right side
    30,571.37x = 575,970,280.90
  5. Step 5: Solve for x
    x = 575,970,280.90/30,571.37
  6. Step 6: Final answer
    x = 18,840.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.