Home / 30,837.67-42,556.77-18,907.58

Finding the Fourth Proportional to 30,837.67, 42,556.77 and 18,907.58

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Solution

The fourth proportional to 30,837.67, 42,556.77 and 18,907.58 is: 26,092.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,837.67 : 42,556.77 = 18,907.58 : x
  2. Step 2: Convert to fraction form
    30,837.67/42,556.77 = 18,907.58/x
  3. Step 3: Cross multiply
    30,837.67x = 42,556.77 × 18,907.58
  4. Step 4: Simplify right side
    30,837.67x = 804,645,639.71
  5. Step 5: Solve for x
    x = 804,645,639.71/30,837.67
  6. Step 6: Final answer
    x = 26,092.95

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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.