Home / 30,840.16-42,559.79-18,093.57

Finding the Fourth Proportional to 30,840.16, 42,559.79 and 18,093.57

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Solution

The fourth proportional to 30,840.16, 42,559.79 and 18,093.57 is: 24,969.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,840.16 : 42,559.79 = 18,093.57 : x
  2. Step 2: Convert to fraction form
    30,840.16/42,559.79 = 18,093.57/x
  3. Step 3: Cross multiply
    30,840.16x = 42,559.79 × 18,093.57
  4. Step 4: Simplify right side
    30,840.16x = 770,058,539.55
  5. Step 5: Solve for x
    x = 770,058,539.55/30,840.16
  6. Step 6: Final answer
    x = 24,969.34

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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.