Home / 35,890.68-53,860.86-20,922.60

Finding the Fourth Proportional to 35,890.68, 53,860.86 and 20,922.60

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Solution

The fourth proportional to 35,890.68, 53,860.86 and 20,922.60 is: 31,398.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,890.68 : 53,860.86 = 20,922.60 : x
  2. Step 2: Convert to fraction form
    35,890.68/53,860.86 = 20,922.60/x
  3. Step 3: Cross multiply
    35,890.68x = 53,860.86 × 20,922.60
  4. Step 4: Simplify right side
    35,890.68x = 1,126,909,229.44
  5. Step 5: Solve for x
    x = 1,126,909,229.44/35,890.68
  6. Step 6: Final answer
    x = 31,398.38

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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.