Home / 30,410.56-41,961.84-16,981.12

Finding the Fourth Proportional to 30,410.56, 41,961.84 and 16,981.12

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Solution

The fourth proportional to 30,410.56, 41,961.84 and 16,981.12 is: 23,431.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,410.56 : 41,961.84 = 16,981.12 : x
  2. Step 2: Convert to fraction form
    30,410.56/41,961.84 = 16,981.12/x
  3. Step 3: Cross multiply
    30,410.56x = 41,961.84 × 16,981.12
  4. Step 4: Simplify right side
    30,410.56x = 712,559,040.46
  5. Step 5: Solve for x
    x = 712,559,040.46/30,410.56
  6. Step 6: Final answer
    x = 23,431.30

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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.