Home / 28,720.56-43,050.01-13,896.80

Finding the Fourth Proportional to 28,720.56, 43,050.01 and 13,896.80

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Solution

The fourth proportional to 28,720.56, 43,050.01 and 13,896.80 is: 20,830.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,720.56 : 43,050.01 = 13,896.80 : x
  2. Step 2: Convert to fraction form
    28,720.56/43,050.01 = 13,896.80/x
  3. Step 3: Cross multiply
    28,720.56x = 43,050.01 × 13,896.80
  4. Step 4: Simplify right side
    28,720.56x = 598,257,378.97
  5. Step 5: Solve for x
    x = 598,257,378.97/28,720.56
  6. Step 6: Final answer
    x = 20,830.28

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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.