Home / 30,998.58-42,777.63-16,851.66

Finding the Fourth Proportional to 30,998.58, 42,777.63 and 16,851.66

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Solution

The fourth proportional to 30,998.58, 42,777.63 and 16,851.66 is: 23,255.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,998.58 : 42,777.63 = 16,851.66 : x
  2. Step 2: Convert to fraction form
    30,998.58/42,777.63 = 16,851.66/x
  3. Step 3: Cross multiply
    30,998.58x = 42,777.63 × 16,851.66
  4. Step 4: Simplify right side
    30,998.58x = 720,874,076.37
  5. Step 5: Solve for x
    x = 720,874,076.37/30,998.58
  6. Step 6: Final answer
    x = 23,255.07

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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.