Home / 15,028.22-20,741.45-8,979.32

Finding the Fourth Proportional to 15,028.22, 20,741.45 and 8,979.32

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Solution

The fourth proportional to 15,028.22, 20,741.45 and 8,979.32 is: 12,392.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,028.22 : 20,741.45 = 8,979.32 : x
  2. Step 2: Convert to fraction form
    15,028.22/20,741.45 = 8,979.32/x
  3. Step 3: Cross multiply
    15,028.22x = 20,741.45 × 8,979.32
  4. Step 4: Simplify right side
    15,028.22x = 186,243,968.21
  5. Step 5: Solve for x
    x = 186,243,968.21/15,028.22
  6. Step 6: Final answer
    x = 12,392.95

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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.