Home / 30,418.31-41,977.46-16,989.66

Finding the Fourth Proportional to 30,418.31, 41,977.46 and 16,989.66

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Solution

The fourth proportional to 30,418.31, 41,977.46 and 16,989.66 is: 23,445.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,418.31 : 41,977.46 = 16,989.66 : x
  2. Step 2: Convert to fraction form
    30,418.31/41,977.46 = 16,989.66/x
  3. Step 3: Cross multiply
    30,418.31x = 41,977.46 × 16,989.66
  4. Step 4: Simplify right side
    30,418.31x = 713,182,655.14
  5. Step 5: Solve for x
    x = 713,182,655.14/30,418.31
  6. Step 6: Final answer
    x = 23,445.84

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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.