Home / 30,972.26-42,741.43-16,825.11

Finding the Fourth Proportional to 30,972.26, 42,741.43 and 16,825.11

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Solution

The fourth proportional to 30,972.26, 42,741.43 and 16,825.11 is: 23,218.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,972.26 : 42,741.43 = 16,825.11 : x
  2. Step 2: Convert to fraction form
    30,972.26/42,741.43 = 16,825.11/x
  3. Step 3: Cross multiply
    30,972.26x = 42,741.43 × 16,825.11
  4. Step 4: Simplify right side
    30,972.26x = 719,129,261.31
  5. Step 5: Solve for x
    x = 719,129,261.31/30,972.26
  6. Step 6: Final answer
    x = 23,218.49

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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.