Home / 28,016.09-38,661.71-15,269.39

Finding the Fourth Proportional to 28,016.09, 38,661.71 and 15,269.39

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Solution

The fourth proportional to 28,016.09, 38,661.71 and 15,269.39 is: 21,071.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,016.09 : 38,661.71 = 15,269.39 : x
  2. Step 2: Convert to fraction form
    28,016.09/38,661.71 = 15,269.39/x
  3. Step 3: Cross multiply
    28,016.09x = 38,661.71 × 15,269.39
  4. Step 4: Simplify right side
    28,016.09x = 590,340,820.85
  5. Step 5: Solve for x
    x = 590,340,820.85/28,016.09
  6. Step 6: Final answer
    x = 21,071.49

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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.