Home / 45,330.07-67,971.63-20,348.60

Finding the Fourth Proportional to 45,330.07, 67,971.63 and 20,348.60

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Solution

The fourth proportional to 45,330.07, 67,971.63 and 20,348.60 is: 30,512.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,330.07 : 67,971.63 = 20,348.60 : x
  2. Step 2: Convert to fraction form
    45,330.07/67,971.63 = 20,348.60/x
  3. Step 3: Cross multiply
    45,330.07x = 67,971.63 × 20,348.60
  4. Step 4: Simplify right side
    45,330.07x = 1,383,127,680.15
  5. Step 5: Solve for x
    x = 1,383,127,680.15/45,330.07
  6. Step 6: Final answer
    x = 30,512.37

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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.