Home / 30,456.41-42,029.57-16,844.45

Finding the Fourth Proportional to 30,456.41, 42,029.57 and 16,844.45

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Solution

The fourth proportional to 30,456.41, 42,029.57 and 16,844.45 is: 23,245.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,456.41 : 42,029.57 = 16,844.45 : x
  2. Step 2: Convert to fraction form
    30,456.41/42,029.57 = 16,844.45/x
  3. Step 3: Cross multiply
    30,456.41x = 42,029.57 × 16,844.45
  4. Step 4: Simplify right side
    30,456.41x = 707,965,137.57
  5. Step 5: Solve for x
    x = 707,965,137.57/30,456.41
  6. Step 6: Final answer
    x = 23,245.19

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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.