Home / 28,183.56-38,894.13-15,608.31

Finding the Fourth Proportional to 28,183.56, 38,894.13 and 15,608.31

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Solution

The fourth proportional to 28,183.56, 38,894.13 and 15,608.31 is: 21,539.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,183.56 : 38,894.13 = 15,608.31 : x
  2. Step 2: Convert to fraction form
    28,183.56/38,894.13 = 15,608.31/x
  3. Step 3: Cross multiply
    28,183.56x = 38,894.13 × 15,608.31
  4. Step 4: Simplify right side
    28,183.56x = 607,071,638.22
  5. Step 5: Solve for x
    x = 607,071,638.22/28,183.56
  6. Step 6: Final answer
    x = 21,539.92

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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.