Home / 28,055.70-38,717.67-15,481.26

Finding the Fourth Proportional to 28,055.70, 38,717.67 and 15,481.26

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Solution

The fourth proportional to 28,055.70, 38,717.67 and 15,481.26 is: 21,364.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,055.70 : 38,717.67 = 15,481.26 : x
  2. Step 2: Convert to fraction form
    28,055.70/38,717.67 = 15,481.26/x
  3. Step 3: Cross multiply
    28,055.70x = 38,717.67 × 15,481.26
  4. Step 4: Simplify right side
    28,055.70x = 599,398,315.86
  5. Step 5: Solve for x
    x = 599,398,315.86/28,055.70
  6. Step 6: Final answer
    x = 21,364.58

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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.