Home / 31,379.51-47,054.91-18,735.00

Finding the Fourth Proportional to 31,379.51, 47,054.91 and 18,735.00

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Solution

The fourth proportional to 31,379.51, 47,054.91 and 18,735.00 is: 28,093.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,379.51 : 47,054.91 = 18,735.00 : x
  2. Step 2: Convert to fraction form
    31,379.51/47,054.91 = 18,735.00/x
  3. Step 3: Cross multiply
    31,379.51x = 47,054.91 × 18,735.00
  4. Step 4: Simplify right side
    31,379.51x = 881,573,791.95
  5. Step 5: Solve for x
    x = 881,573,791.95/31,379.51
  6. Step 6: Final answer
    x = 28,093.93

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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.