Home / 30,571.15-42,170.27-19,222.66

Finding the Fourth Proportional to 30,571.15, 42,170.27 and 19,222.66

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Solution

The fourth proportional to 30,571.15, 42,170.27 and 19,222.66 is: 26,516.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,571.15 : 42,170.27 = 19,222.66 : x
  2. Step 2: Convert to fraction form
    30,571.15/42,170.27 = 19,222.66/x
  3. Step 3: Cross multiply
    30,571.15x = 42,170.27 × 19,222.66
  4. Step 4: Simplify right side
    30,571.15x = 810,624,762.32
  5. Step 5: Solve for x
    x = 810,624,762.32/30,571.15
  6. Step 6: Final answer
    x = 26,516.00

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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.