Home / 20,873.19-28,803.69-11,441.82

Finding the Fourth Proportional to 20,873.19, 28,803.69 and 11,441.82

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Solution

The fourth proportional to 20,873.19, 28,803.69 and 11,441.82 is: 15,788.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,873.19 : 28,803.69 = 11,441.82 : x
  2. Step 2: Convert to fraction form
    20,873.19/28,803.69 = 11,441.82/x
  3. Step 3: Cross multiply
    20,873.19x = 28,803.69 × 11,441.82
  4. Step 4: Simplify right side
    20,873.19x = 329,566,636.32
  5. Step 5: Solve for x
    x = 329,566,636.32/20,873.19
  6. Step 6: Final answer
    x = 15,788.99

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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.