Home / 20,904.70-28,848.39-11,473.06

Finding the Fourth Proportional to 20,904.70, 28,848.39 and 11,473.06

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Solution

The fourth proportional to 20,904.70, 28,848.39 and 11,473.06 is: 15,832.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,904.70 : 28,848.39 = 11,473.06 : x
  2. Step 2: Convert to fraction form
    20,904.70/28,848.39 = 11,473.06/x
  3. Step 3: Cross multiply
    20,904.70x = 28,848.39 × 11,473.06
  4. Step 4: Simplify right side
    20,904.70x = 330,979,309.37
  5. Step 5: Solve for x
    x = 330,979,309.37/20,904.70
  6. Step 6: Final answer
    x = 15,832.77

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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.