Home / 28,995.05-43,480.27-10,279.80

Finding the Fourth Proportional to 28,995.05, 43,480.27 and 10,279.80

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Solution

The fourth proportional to 28,995.05, 43,480.27 and 10,279.80 is: 15,415.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,995.05 : 43,480.27 = 10,279.80 : x
  2. Step 2: Convert to fraction form
    28,995.05/43,480.27 = 10,279.80/x
  3. Step 3: Cross multiply
    28,995.05x = 43,480.27 × 10,279.80
  4. Step 4: Simplify right side
    28,995.05x = 446,968,479.55
  5. Step 5: Solve for x
    x = 446,968,479.55/28,995.05
  6. Step 6: Final answer
    x = 15,415.34

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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.