Home / 28,990.46-43,475.43-13,791.22

Finding the Fourth Proportional to 28,990.46, 43,475.43 and 13,791.22

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Solution

The fourth proportional to 28,990.46, 43,475.43 and 13,791.22 is: 20,681.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,990.46 : 43,475.43 = 13,791.22 : x
  2. Step 2: Convert to fraction form
    28,990.46/43,475.43 = 13,791.22/x
  3. Step 3: Cross multiply
    28,990.46x = 43,475.43 × 13,791.22
  4. Step 4: Simplify right side
    28,990.46x = 599,579,219.72
  5. Step 5: Solve for x
    x = 599,579,219.72/28,990.46
  6. Step 6: Final answer
    x = 20,681.95

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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.