Home / 28,927.72-39,899.46-18,837.46

Finding the Fourth Proportional to 28,927.72, 39,899.46 and 18,837.46

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Solution

The fourth proportional to 28,927.72, 39,899.46 and 18,837.46 is: 25,982.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,927.72 : 39,899.46 = 18,837.46 : x
  2. Step 2: Convert to fraction form
    28,927.72/39,899.46 = 18,837.46/x
  3. Step 3: Cross multiply
    28,927.72x = 39,899.46 × 18,837.46
  4. Step 4: Simplify right side
    28,927.72x = 751,604,481.77
  5. Step 5: Solve for x
    x = 751,604,481.77/28,927.72
  6. Step 6: Final answer
    x = 25,982.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.