Home / 28,647.53-42,927.33-11,998.45

Finding the Fourth Proportional to 28,647.53, 42,927.33 and 11,998.45

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Solution

The fourth proportional to 28,647.53, 42,927.33 and 11,998.45 is: 17,979.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,647.53 : 42,927.33 = 11,998.45 : x
  2. Step 2: Convert to fraction form
    28,647.53/42,927.33 = 11,998.45/x
  3. Step 3: Cross multiply
    28,647.53x = 42,927.33 × 11,998.45
  4. Step 4: Simplify right side
    28,647.53x = 515,061,208.00
  5. Step 5: Solve for x
    x = 515,061,208.00/28,647.53
  6. Step 6: Final answer
    x = 17,979.26

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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.