Home / 28,185.08-38,895.32-15,609.83

Finding the Fourth Proportional to 28,185.08, 38,895.32 and 15,609.83

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Solution

The fourth proportional to 28,185.08, 38,895.32 and 15,609.83 is: 21,541.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,185.08 : 38,895.32 = 15,609.83 : x
  2. Step 2: Convert to fraction form
    28,185.08/38,895.32 = 15,609.83/x
  3. Step 3: Cross multiply
    28,185.08x = 38,895.32 × 15,609.83
  4. Step 4: Simplify right side
    28,185.08x = 607,149,177.54
  5. Step 5: Solve for x
    x = 607,149,177.54/28,185.08
  6. Step 6: Final answer
    x = 21,541.51

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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.