Home / 30,998.37-42,777.81-16,851.18

Finding the Fourth Proportional to 30,998.37, 42,777.81 and 16,851.18

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Solution

The fourth proportional to 30,998.37, 42,777.81 and 16,851.18 is: 23,254.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,998.37 : 42,777.81 = 16,851.18 : x
  2. Step 2: Convert to fraction form
    30,998.37/42,777.81 = 16,851.18/x
  3. Step 3: Cross multiply
    30,998.37x = 42,777.81 × 16,851.18
  4. Step 4: Simplify right side
    30,998.37x = 720,856,576.32
  5. Step 5: Solve for x
    x = 720,856,576.32/30,998.37
  6. Step 6: Final answer
    x = 23,254.66

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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.