Home / 28,674.06-42,989.22-13,080.78

Finding the Fourth Proportional to 28,674.06, 42,989.22 and 13,080.78

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Solution

The fourth proportional to 28,674.06, 42,989.22 and 13,080.78 is: 19,611.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,674.06 : 42,989.22 = 13,080.78 : x
  2. Step 2: Convert to fraction form
    28,674.06/42,989.22 = 13,080.78/x
  3. Step 3: Cross multiply
    28,674.06x = 42,989.22 × 13,080.78
  4. Step 4: Simplify right side
    28,674.06x = 562,332,529.19
  5. Step 5: Solve for x
    x = 562,332,529.19/28,674.06
  6. Step 6: Final answer
    x = 19,611.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.