Home / 43,905.51-65,870.15-15,828.68

Finding the Fourth Proportional to 43,905.51, 65,870.15 and 15,828.68

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Solution

The fourth proportional to 43,905.51, 65,870.15 and 15,828.68 is: 23,747.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,905.51 : 65,870.15 = 15,828.68 : x
  2. Step 2: Convert to fraction form
    43,905.51/65,870.15 = 15,828.68/x
  3. Step 3: Cross multiply
    43,905.51x = 65,870.15 × 15,828.68
  4. Step 4: Simplify right side
    43,905.51x = 1,042,637,611.43
  5. Step 5: Solve for x
    x = 1,042,637,611.43/43,905.51
  6. Step 6: Final answer
    x = 23,747.31

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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.