Home / 30,405.36-41,960.28-16,976.40

Finding the Fourth Proportional to 30,405.36, 41,960.28 and 16,976.40

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Solution

The fourth proportional to 30,405.36, 41,960.28 and 16,976.40 is: 23,427.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,405.36 : 41,960.28 = 16,976.40 : x
  2. Step 2: Convert to fraction form
    30,405.36/41,960.28 = 16,976.40/x
  3. Step 3: Cross multiply
    30,405.36x = 41,960.28 × 16,976.40
  4. Step 4: Simplify right side
    30,405.36x = 712,334,497.39
  5. Step 5: Solve for x
    x = 712,334,497.39/30,405.36
  6. Step 6: Final answer
    x = 23,427.93

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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.