Home / 35,338.70-48,759.53-20,997.45

Finding the Fourth Proportional to 35,338.70, 48,759.53 and 20,997.45

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Solution

The fourth proportional to 35,338.70, 48,759.53 and 20,997.45 is: 28,971.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,338.70 : 48,759.53 = 20,997.45 : x
  2. Step 2: Convert to fraction form
    35,338.70/48,759.53 = 20,997.45/x
  3. Step 3: Cross multiply
    35,338.70x = 48,759.53 × 20,997.45
  4. Step 4: Simplify right side
    35,338.70x = 1,023,825,688.21
  5. Step 5: Solve for x
    x = 1,023,825,688.21/35,338.70
  6. Step 6: Final answer
    x = 28,971.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.