Home / 27,620-41,350.08-21,072.32

Finding the Fourth Proportional to 27,620, 41,350.08 and 21,072.32

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Solution

The fourth proportional to 27,620, 41,350.08 and 21,072.32 is: 31,547.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,620 : 41,350.08 = 21,072.32 : x
  2. Step 2: Convert to fraction form
    27,620/41,350.08 = 21,072.32/x
  3. Step 3: Cross multiply
    27,620x = 41,350.08 × 21,072.32
  4. Step 4: Simplify right side
    27,620x = 871,342,117.79
  5. Step 5: Solve for x
    x = 871,342,117.79/27,620
  6. Step 6: Final answer
    x = 31,547.51

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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.