Home / 43,220.48-64,783.20-16,920.32

Finding the Fourth Proportional to 43,220.48, 64,783.20 and 16,920.32

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Solution

The fourth proportional to 43,220.48, 64,783.20 and 16,920.32 is: 25,361.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,220.48 : 64,783.20 = 16,920.32 : x
  2. Step 2: Convert to fraction form
    43,220.48/64,783.20 = 16,920.32/x
  3. Step 3: Cross multiply
    43,220.48x = 64,783.20 × 16,920.32
  4. Step 4: Simplify right side
    43,220.48x = 1,096,152,474.62
  5. Step 5: Solve for x
    x = 1,096,152,474.62/43,220.48
  6. Step 6: Final answer
    x = 25,361.88

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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.