Home / 27,553.05-38,019.83-18,620.01

Finding the Fourth Proportional to 27,553.05, 38,019.83 and 18,620.01

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Solution

The fourth proportional to 27,553.05, 38,019.83 and 18,620.01 is: 25,693.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,553.05 : 38,019.83 = 18,620.01 : x
  2. Step 2: Convert to fraction form
    27,553.05/38,019.83 = 18,620.01/x
  3. Step 3: Cross multiply
    27,553.05x = 38,019.83 × 18,620.01
  4. Step 4: Simplify right side
    27,553.05x = 707,929,521.70
  5. Step 5: Solve for x
    x = 707,929,521.70/27,553.05
  6. Step 6: Final answer
    x = 25,693.33

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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.