Home / 65,021.38-97,535.44-20,651.60

Finding the Fourth Proportional to 65,021.38, 97,535.44 and 20,651.60

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Solution

The fourth proportional to 65,021.38, 97,535.44 and 20,651.60 is: 30,978.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,021.38 : 97,535.44 = 20,651.60 : x
  2. Step 2: Convert to fraction form
    65,021.38/97,535.44 = 20,651.60/x
  3. Step 3: Cross multiply
    65,021.38x = 97,535.44 × 20,651.60
  4. Step 4: Simplify right side
    65,021.38x = 2,014,262,892.70
  5. Step 5: Solve for x
    x = 2,014,262,892.70/65,021.38
  6. Step 6: Final answer
    x = 30,978.47

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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.