Home / 28,837.67-39,736.91-21,272.01

Finding the Fourth Proportional to 28,837.67, 39,736.91 and 21,272.01

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Solution

The fourth proportional to 28,837.67, 39,736.91 and 21,272.01 is: 29,311.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,837.67 : 39,736.91 = 21,272.01 : x
  2. Step 2: Convert to fraction form
    28,837.67/39,736.91 = 21,272.01/x
  3. Step 3: Cross multiply
    28,837.67x = 39,736.91 × 21,272.01
  4. Step 4: Simplify right side
    28,837.67x = 845,283,851.06
  5. Step 5: Solve for x
    x = 845,283,851.06/28,837.67
  6. Step 6: Final answer
    x = 29,311.80

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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.