Home / 28,516.73-39,346.91-15,941.05

Finding the Fourth Proportional to 28,516.73, 39,346.91 and 15,941.05

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Solution

The fourth proportional to 28,516.73, 39,346.91 and 15,941.05 is: 21,995.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,516.73 : 39,346.91 = 15,941.05 : x
  2. Step 2: Convert to fraction form
    28,516.73/39,346.91 = 15,941.05/x
  3. Step 3: Cross multiply
    28,516.73x = 39,346.91 × 15,941.05
  4. Step 4: Simplify right side
    28,516.73x = 627,230,979.95
  5. Step 5: Solve for x
    x = 627,230,979.95/28,516.73
  6. Step 6: Final answer
    x = 21,995.19

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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.