Home / 42,825.38-64,201.14-20,608.20

Finding the Fourth Proportional to 42,825.38, 64,201.14 and 20,608.20

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Solution

The fourth proportional to 42,825.38, 64,201.14 and 20,608.20 is: 30,894.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,825.38 : 64,201.14 = 20,608.20 : x
  2. Step 2: Convert to fraction form
    42,825.38/64,201.14 = 20,608.20/x
  3. Step 3: Cross multiply
    42,825.38x = 64,201.14 × 20,608.20
  4. Step 4: Simplify right side
    42,825.38x = 1,323,069,933.35
  5. Step 5: Solve for x
    x = 1,323,069,933.35/42,825.38
  6. Step 6: Final answer
    x = 30,894.53

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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.