Home / 28,321.32-39,084.41-15,575.02

Finding the Fourth Proportional to 28,321.32, 39,084.41 and 15,575.02

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Solution

The fourth proportional to 28,321.32, 39,084.41 and 15,575.02 is: 21,494.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,321.32 : 39,084.41 = 15,575.02 : x
  2. Step 2: Convert to fraction form
    28,321.32/39,084.41 = 15,575.02/x
  3. Step 3: Cross multiply
    28,321.32x = 39,084.41 × 15,575.02
  4. Step 4: Simplify right side
    28,321.32x = 608,740,467.44
  5. Step 5: Solve for x
    x = 608,740,467.44/28,321.32
  6. Step 6: Final answer
    x = 21,494.07

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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.