Home / 28,736.93-39,675.19-19,677.46

Finding the Fourth Proportional to 28,736.93, 39,675.19 and 19,677.46

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Solution

The fourth proportional to 28,736.93, 39,675.19 and 19,677.46 is: 27,167.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,736.93 : 39,675.19 = 19,677.46 : x
  2. Step 2: Convert to fraction form
    28,736.93/39,675.19 = 19,677.46/x
  3. Step 3: Cross multiply
    28,736.93x = 39,675.19 × 19,677.46
  4. Step 4: Simplify right side
    28,736.93x = 780,706,778.34
  5. Step 5: Solve for x
    x = 780,706,778.34/28,736.93
  6. Step 6: Final answer
    x = 27,167.36

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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.