Home / 20,235.64-27,925.54-11,162.04

Finding the Fourth Proportional to 20,235.64, 27,925.54 and 11,162.04

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Solution

The fourth proportional to 20,235.64, 27,925.54 and 11,162.04 is: 15,403.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,235.64 : 27,925.54 = 11,162.04 : x
  2. Step 2: Convert to fraction form
    20,235.64/27,925.54 = 11,162.04/x
  3. Step 3: Cross multiply
    20,235.64x = 27,925.54 × 11,162.04
  4. Step 4: Simplify right side
    20,235.64x = 311,705,994.50
  5. Step 5: Solve for x
    x = 311,705,994.50/20,235.64
  6. Step 6: Final answer
    x = 15,403.81

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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.