Home / 30,961.17-42,726.42-16,813.98

Finding the Fourth Proportional to 30,961.17, 42,726.42 and 16,813.98

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Solution

The fourth proportional to 30,961.17, 42,726.42 and 16,813.98 is: 23,203.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,961.17 : 42,726.42 = 16,813.98 : x
  2. Step 2: Convert to fraction form
    30,961.17/42,726.42 = 16,813.98/x
  3. Step 3: Cross multiply
    30,961.17x = 42,726.42 × 16,813.98
  4. Step 4: Simplify right side
    30,961.17x = 718,401,171.35
  5. Step 5: Solve for x
    x = 718,401,171.35/30,961.17
  6. Step 6: Final answer
    x = 23,203.30

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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.