Home / 16,028.80-22,128.96-11,000.32

Finding the Fourth Proportional to 16,028.80, 22,128.96 and 11,000.32

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Solution

The fourth proportional to 16,028.80, 22,128.96 and 11,000.32 is: 15,186.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,028.80 : 22,128.96 = 11,000.32 : x
  2. Step 2: Convert to fraction form
    16,028.80/22,128.96 = 11,000.32/x
  3. Step 3: Cross multiply
    16,028.80x = 22,128.96 × 11,000.32
  4. Step 4: Simplify right side
    16,028.80x = 243,425,641.27
  5. Step 5: Solve for x
    x = 243,425,641.27/16,028.80
  6. Step 6: Final answer
    x = 15,186.77

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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.