Home / 28,208.71-38,942.54-19,272.79

Finding the Fourth Proportional to 28,208.71, 38,942.54 and 19,272.79

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Solution

The fourth proportional to 28,208.71, 38,942.54 and 19,272.79 is: 26,606.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,208.71 : 38,942.54 = 19,272.79 : x
  2. Step 2: Convert to fraction form
    28,208.71/38,942.54 = 19,272.79/x
  3. Step 3: Cross multiply
    28,208.71x = 38,942.54 × 19,272.79
  4. Step 4: Simplify right side
    28,208.71x = 750,531,395.49
  5. Step 5: Solve for x
    x = 750,531,395.49/28,208.71
  6. Step 6: Final answer
    x = 26,606.37

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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.