Home / 28,989.06-40,037.94-20,512.50

Finding the Fourth Proportional to 28,989.06, 40,037.94 and 20,512.50

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Solution

The fourth proportional to 28,989.06, 40,037.94 and 20,512.50 is: 28,330.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,989.06 : 40,037.94 = 20,512.50 : x
  2. Step 2: Convert to fraction form
    28,989.06/40,037.94 = 20,512.50/x
  3. Step 3: Cross multiply
    28,989.06x = 40,037.94 × 20,512.50
  4. Step 4: Simplify right side
    28,989.06x = 821,278,244.25
  5. Step 5: Solve for x
    x = 821,278,244.25/28,989.06
  6. Step 6: Final answer
    x = 28,330.63

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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.