Home / 30,405.60-45,608.39-22,138.22

Finding the Fourth Proportional to 30,405.60, 45,608.39 and 22,138.22

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Solution

The fourth proportional to 30,405.60, 45,608.39 and 22,138.22 is: 33,207.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,405.60 : 45,608.39 = 22,138.22 : x
  2. Step 2: Convert to fraction form
    30,405.60/45,608.39 = 22,138.22/x
  3. Step 3: Cross multiply
    30,405.60x = 45,608.39 × 22,138.22
  4. Step 4: Simplify right side
    30,405.60x = 1,009,688,571.67
  5. Step 5: Solve for x
    x = 1,009,688,571.67/30,405.60
  6. Step 6: Final answer
    x = 33,207.32

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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.