Home / 28,056.98-42,100.96-11,428.71

Finding the Fourth Proportional to 28,056.98, 42,100.96 and 11,428.71

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Solution

The fourth proportional to 28,056.98, 42,100.96 and 11,428.71 is: 17,149.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,056.98 : 42,100.96 = 11,428.71 : x
  2. Step 2: Convert to fraction form
    28,056.98/42,100.96 = 11,428.71/x
  3. Step 3: Cross multiply
    28,056.98x = 42,100.96 × 11,428.71
  4. Step 4: Simplify right side
    28,056.98x = 481,159,662.56
  5. Step 5: Solve for x
    x = 481,159,662.56/28,056.98
  6. Step 6: Final answer
    x = 17,149.37

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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.