Home / 28,573.32-39,427.38-15,997.80

Finding the Fourth Proportional to 28,573.32, 39,427.38 and 15,997.80

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Solution

The fourth proportional to 28,573.32, 39,427.38 and 15,997.80 is: 22,074.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,573.32 : 39,427.38 = 15,997.80 : x
  2. Step 2: Convert to fraction form
    28,573.32/39,427.38 = 15,997.80/x
  3. Step 3: Cross multiply
    28,573.32x = 39,427.38 × 15,997.80
  4. Step 4: Simplify right side
    28,573.32x = 630,751,339.76
  5. Step 5: Solve for x
    x = 630,751,339.76/28,573.32
  6. Step 6: Final answer
    x = 22,074.84

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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.