Home / 20,904.56-28,848.84-11,953.52

Finding the Fourth Proportional to 20,904.56, 28,848.84 and 11,953.52

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Solution

The fourth proportional to 20,904.56, 28,848.84 and 11,953.52 is: 16,496.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,904.56 : 28,848.84 = 11,953.52 : x
  2. Step 2: Convert to fraction form
    20,904.56/28,848.84 = 11,953.52/x
  3. Step 3: Cross multiply
    20,904.56x = 28,848.84 × 11,953.52
  4. Step 4: Simplify right side
    20,904.56x = 344,845,185.92
  5. Step 5: Solve for x
    x = 344,845,185.92/20,904.56
  6. Step 6: Final answer
    x = 16,496.17

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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.