Home / 27,738.05-38,239.80-19,225.55

Finding the Fourth Proportional to 27,738.05, 38,239.80 and 19,225.55

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Solution

The fourth proportional to 27,738.05, 38,239.80 and 19,225.55 is: 26,504.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,738.05 : 38,239.80 = 19,225.55 : x
  2. Step 2: Convert to fraction form
    27,738.05/38,239.80 = 19,225.55/x
  3. Step 3: Cross multiply
    27,738.05x = 38,239.80 × 19,225.55
  4. Step 4: Simplify right side
    27,738.05x = 735,181,210.39
  5. Step 5: Solve for x
    x = 735,181,210.39/27,738.05
  6. Step 6: Final answer
    x = 26,504.43

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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.