Home / 43,292.45-64,940.70-13,712.60

Finding the Fourth Proportional to 43,292.45, 64,940.70 and 13,712.60

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Solution

The fourth proportional to 43,292.45, 64,940.70 and 13,712.60 is: 20,569.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,292.45 : 64,940.70 = 13,712.60 : x
  2. Step 2: Convert to fraction form
    43,292.45/64,940.70 = 13,712.60/x
  3. Step 3: Cross multiply
    43,292.45x = 64,940.70 × 13,712.60
  4. Step 4: Simplify right side
    43,292.45x = 890,505,842.82
  5. Step 5: Solve for x
    x = 890,505,842.82/43,292.45
  6. Step 6: Final answer
    x = 20,569.54

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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.