Home / 28,001.27-42,008.06-20,583.24

Finding the Fourth Proportional to 28,001.27, 42,008.06 and 20,583.24

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Solution

The fourth proportional to 28,001.27, 42,008.06 and 20,583.24 is: 30,879.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,001.27 : 42,008.06 = 20,583.24 : x
  2. Step 2: Convert to fraction form
    28,001.27/42,008.06 = 20,583.24/x
  3. Step 3: Cross multiply
    28,001.27x = 42,008.06 × 20,583.24
  4. Step 4: Simplify right side
    28,001.27x = 864,661,878.00
  5. Step 5: Solve for x
    x = 864,661,878.00/28,001.27
  6. Step 6: Final answer
    x = 30,879.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.