Home / 38,213.88-57,319.86-13,271.80

Finding the Fourth Proportional to 38,213.88, 57,319.86 and 13,271.80

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Solution

The fourth proportional to 38,213.88, 57,319.86 and 13,271.80 is: 19,907.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,213.88 : 57,319.86 = 13,271.80 : x
  2. Step 2: Convert to fraction form
    38,213.88/57,319.86 = 13,271.80/x
  3. Step 3: Cross multiply
    38,213.88x = 57,319.86 × 13,271.80
  4. Step 4: Simplify right side
    38,213.88x = 760,737,717.95
  5. Step 5: Solve for x
    x = 760,737,717.95/38,213.88
  6. Step 6: Final answer
    x = 19,907.37

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1.5x scale

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.