Home / 28,674.23-42,990.37-19,290.92

Finding the Fourth Proportional to 28,674.23, 42,990.37 and 19,290.92

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Solution

The fourth proportional to 28,674.23, 42,990.37 and 19,290.92 is: 28,922.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,674.23 : 42,990.37 = 19,290.92 : x
  2. Step 2: Convert to fraction form
    28,674.23/42,990.37 = 19,290.92/x
  3. Step 3: Cross multiply
    28,674.23x = 42,990.37 × 19,290.92
  4. Step 4: Simplify right side
    28,674.23x = 829,323,525.26
  5. Step 5: Solve for x
    x = 829,323,525.26/28,674.23
  6. Step 6: Final answer
    x = 28,922.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.