Home / 28,004.04-38,645.42-15,257.18

Finding the Fourth Proportional to 28,004.04, 38,645.42 and 15,257.18

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Solution

The fourth proportional to 28,004.04, 38,645.42 and 15,257.18 is: 21,054.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,004.04 : 38,645.42 = 15,257.18 : x
  2. Step 2: Convert to fraction form
    28,004.04/38,645.42 = 15,257.18/x
  3. Step 3: Cross multiply
    28,004.04x = 38,645.42 × 15,257.18
  4. Step 4: Simplify right side
    28,004.04x = 589,620,149.44
  5. Step 5: Solve for x
    x = 589,620,149.44/28,004.04
  6. Step 6: Final answer
    x = 21,054.82

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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.