Home / 28,231.09-38,977.29-19,275.34

Finding the Fourth Proportional to 28,231.09, 38,977.29 and 19,275.34

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Solution

The fourth proportional to 28,231.09, 38,977.29 and 19,275.34 is: 26,612.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,231.09 : 38,977.29 = 19,275.34 : x
  2. Step 2: Convert to fraction form
    28,231.09/38,977.29 = 19,275.34/x
  3. Step 3: Cross multiply
    28,231.09x = 38,977.29 × 19,275.34
  4. Step 4: Simplify right side
    28,231.09x = 751,300,517.03
  5. Step 5: Solve for x
    x = 751,300,517.03/28,231.09
  6. Step 6: Final answer
    x = 26,612.52

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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.