Home / 43,721.64-65,582.06-14,138.82

Finding the Fourth Proportional to 43,721.64, 65,582.06 and 14,138.82

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Solution

The fourth proportional to 43,721.64, 65,582.06 and 14,138.82 is: 21,208.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,721.64 : 65,582.06 = 14,138.82 : x
  2. Step 2: Convert to fraction form
    43,721.64/65,582.06 = 14,138.82/x
  3. Step 3: Cross multiply
    43,721.64x = 65,582.06 × 14,138.82
  4. Step 4: Simplify right side
    43,721.64x = 927,252,870.88
  5. Step 5: Solve for x
    x = 927,252,870.88/43,721.64
  6. Step 6: Final answer
    x = 21,208.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.