Home / 20,873.14-28,805.04-11,313.04

Finding the Fourth Proportional to 20,873.14, 28,805.04 and 11,313.04

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Solution

The fourth proportional to 20,873.14, 28,805.04 and 11,313.04 is: 15,612.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,873.14 : 28,805.04 = 11,313.04 : x
  2. Step 2: Convert to fraction form
    20,873.14/28,805.04 = 11,313.04/x
  3. Step 3: Cross multiply
    20,873.14x = 28,805.04 × 11,313.04
  4. Step 4: Simplify right side
    20,873.14x = 325,872,569.72
  5. Step 5: Solve for x
    x = 325,872,569.72/20,873.14
  6. Step 6: Final answer
    x = 15,612.05

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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.