Home / 20,873.36-28,807.23-11,922.20

Finding the Fourth Proportional to 20,873.36, 28,807.23 and 11,922.20

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Solution

The fourth proportional to 20,873.36, 28,807.23 and 11,922.20 is: 16,453.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,873.36 : 28,807.23 = 11,922.20 : x
  2. Step 2: Convert to fraction form
    20,873.36/28,807.23 = 11,922.20/x
  3. Step 3: Cross multiply
    20,873.36x = 28,807.23 × 11,922.20
  4. Step 4: Simplify right side
    20,873.36x = 343,445,557.51
  5. Step 5: Solve for x
    x = 343,445,557.51/20,873.36
  6. Step 6: Final answer
    x = 16,453.77

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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.