Home / 20,904.96-28,848.72-11,473.32

Finding the Fourth Proportional to 20,904.96, 28,848.72 and 11,473.32

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Solution

The fourth proportional to 20,904.96, 28,848.72 and 11,473.32 is: 15,833.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,904.96 : 28,848.72 = 11,473.32 : x
  2. Step 2: Convert to fraction form
    20,904.96/28,848.72 = 11,473.32/x
  3. Step 3: Cross multiply
    20,904.96x = 28,848.72 × 11,473.32
  4. Step 4: Simplify right side
    20,904.96x = 330,990,596.15
  5. Step 5: Solve for x
    x = 330,990,596.15/20,904.96
  6. Step 6: Final answer
    x = 15,833.11

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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.