Home / 30,138.39-41,589.81-16,709.88

Finding the Fourth Proportional to 30,138.39, 41,589.81 and 16,709.88

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Solution

The fourth proportional to 30,138.39, 41,589.81 and 16,709.88 is: 23,058.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,138.39 : 41,589.81 = 16,709.88 : x
  2. Step 2: Convert to fraction form
    30,138.39/41,589.81 = 16,709.88/x
  3. Step 3: Cross multiply
    30,138.39x = 41,589.81 × 16,709.88
  4. Step 4: Simplify right side
    30,138.39x = 694,960,734.32
  5. Step 5: Solve for x
    x = 694,960,734.32/30,138.39
  6. Step 6: Final answer
    x = 23,058.99

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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.