Home / 28,538.49-39,374.19-17,211.45

Finding the Fourth Proportional to 28,538.49, 39,374.19 and 17,211.45

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Solution

The fourth proportional to 28,538.49, 39,374.19 and 17,211.45 is: 23,746.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,538.49 : 39,374.19 = 17,211.45 : x
  2. Step 2: Convert to fraction form
    28,538.49/39,374.19 = 17,211.45/x
  3. Step 3: Cross multiply
    28,538.49x = 39,374.19 × 17,211.45
  4. Step 4: Simplify right side
    28,538.49x = 677,686,902.48
  5. Step 5: Solve for x
    x = 677,686,902.48/28,538.49
  6. Step 6: Final answer
    x = 23,746.42

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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.