Home / 20,899.08-28,840.74-11,467.62

Finding the Fourth Proportional to 20,899.08, 28,840.74 and 11,467.62

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Solution

The fourth proportional to 20,899.08, 28,840.74 and 11,467.62 is: 15,825.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,899.08 : 28,840.74 = 11,467.62 : x
  2. Step 2: Convert to fraction form
    20,899.08/28,840.74 = 11,467.62/x
  3. Step 3: Cross multiply
    20,899.08x = 28,840.74 × 11,467.62
  4. Step 4: Simplify right side
    20,899.08x = 330,734,646.84
  5. Step 5: Solve for x
    x = 330,734,646.84/20,899.08
  6. Step 6: Final answer
    x = 15,825.32

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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.