Home / 28,738.50-43,107.76-9,018.60

Finding the Fourth Proportional to 28,738.50, 43,107.76 and 9,018.60

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Solution

The fourth proportional to 28,738.50, 43,107.76 and 9,018.60 is: 13,527.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,738.50 : 43,107.76 = 9,018.60 : x
  2. Step 2: Convert to fraction form
    28,738.50/43,107.76 = 9,018.60/x
  3. Step 3: Cross multiply
    28,738.50x = 43,107.76 × 9,018.60
  4. Step 4: Simplify right side
    28,738.50x = 388,771,644.34
  5. Step 5: Solve for x
    x = 388,771,644.34/28,738.50
  6. Step 6: Final answer
    x = 13,527.90

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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.