Home / 20,994.72-28,976.31-14,275.77

Finding the Fourth Proportional to 20,994.72, 28,976.31 and 14,275.77

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Solution

The fourth proportional to 20,994.72, 28,976.31 and 14,275.77 is: 19,703.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,994.72 : 28,976.31 = 14,275.77 : x
  2. Step 2: Convert to fraction form
    20,994.72/28,976.31 = 14,275.77/x
  3. Step 3: Cross multiply
    20,994.72x = 28,976.31 × 14,275.77
  4. Step 4: Simplify right side
    20,994.72x = 413,659,137.01
  5. Step 5: Solve for x
    x = 413,659,137.01/20,994.72
  6. Step 6: Final answer
    x = 19,703.01

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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.