Home / 30,733.56-42,422.94-18,157.50

Finding the Fourth Proportional to 30,733.56, 42,422.94 and 18,157.50

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Solution

The fourth proportional to 30,733.56, 42,422.94 and 18,157.50 is: 25,063.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,733.56 : 42,422.94 = 18,157.50 : x
  2. Step 2: Convert to fraction form
    30,733.56/42,422.94 = 18,157.50/x
  3. Step 3: Cross multiply
    30,733.56x = 42,422.94 × 18,157.50
  4. Step 4: Simplify right side
    30,733.56x = 770,294,533.05
  5. Step 5: Solve for x
    x = 770,294,533.05/30,733.56
  6. Step 6: Final answer
    x = 25,063.63

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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.