Home / 43,055.72-64,584.80-11,890.98

Finding the Fourth Proportional to 43,055.72, 64,584.80 and 11,890.98

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Solution

The fourth proportional to 43,055.72, 64,584.80 and 11,890.98 is: 17,836.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,055.72 : 64,584.80 = 11,890.98 : x
  2. Step 2: Convert to fraction form
    43,055.72/64,584.80 = 11,890.98/x
  3. Step 3: Cross multiply
    43,055.72x = 64,584.80 × 11,890.98
  4. Step 4: Simplify right side
    43,055.72x = 767,976,565.10
  5. Step 5: Solve for x
    x = 767,976,565.10/43,055.72
  6. Step 6: Final answer
    x = 17,836.81

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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.