Home / 28,056.32-38,718.53-15,481.88

Finding the Fourth Proportional to 28,056.32, 38,718.53 and 15,481.88

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Solution

The fourth proportional to 28,056.32, 38,718.53 and 15,481.88 is: 21,365.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,056.32 : 38,718.53 = 15,481.88 : x
  2. Step 2: Convert to fraction form
    28,056.32/38,718.53 = 15,481.88/x
  3. Step 3: Cross multiply
    28,056.32x = 38,718.53 × 15,481.88
  4. Step 4: Simplify right side
    28,056.32x = 599,435,635.24
  5. Step 5: Solve for x
    x = 599,435,635.24/28,056.32
  6. Step 6: Final answer
    x = 21,365.44

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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.