Home / 31,888.88-47,853.26-20,042.12

Finding the Fourth Proportional to 31,888.88, 47,853.26 and 20,042.12

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Solution

The fourth proportional to 31,888.88, 47,853.26 and 20,042.12 is: 30,075.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,888.88 : 47,853.26 = 20,042.12 : x
  2. Step 2: Convert to fraction form
    31,888.88/47,853.26 = 20,042.12/x
  3. Step 3: Cross multiply
    31,888.88x = 47,853.26 × 20,042.12
  4. Step 4: Simplify right side
    31,888.88x = 959,080,779.31
  5. Step 5: Solve for x
    x = 959,080,779.31/31,888.88
  6. Step 6: Final answer
    x = 30,075.71

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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.