Home / 28,649.26-39,531.77-15,902.54

Finding the Fourth Proportional to 28,649.26, 39,531.77 and 15,902.54

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Solution

The fourth proportional to 28,649.26, 39,531.77 and 15,902.54 is: 21,943.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,649.26 : 39,531.77 = 15,902.54 : x
  2. Step 2: Convert to fraction form
    28,649.26/39,531.77 = 15,902.54/x
  3. Step 3: Cross multiply
    28,649.26x = 39,531.77 × 15,902.54
  4. Step 4: Simplify right side
    28,649.26x = 628,655,494.06
  5. Step 5: Solve for x
    x = 628,655,494.06/28,649.26
  6. Step 6: Final answer
    x = 21,943.16

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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.