Home / 28,620.57-42,930.87-23,047.77

Finding the Fourth Proportional to 28,620.57, 42,930.87 and 23,047.77

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Solution

The fourth proportional to 28,620.57, 42,930.87 and 23,047.77 is: 34,571.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,620.57 : 42,930.87 = 23,047.77 : x
  2. Step 2: Convert to fraction form
    28,620.57/42,930.87 = 23,047.77/x
  3. Step 3: Cross multiply
    28,620.57x = 42,930.87 × 23,047.77
  4. Step 4: Simplify right side
    28,620.57x = 989,460,817.66
  5. Step 5: Solve for x
    x = 989,460,817.66/28,620.57
  6. Step 6: Final answer
    x = 34,571.67

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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.