Home / 19,002.98-28,479.36-13,755.54

Finding the Fourth Proportional to 19,002.98, 28,479.36 and 13,755.54

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Solution

The fourth proportional to 19,002.98, 28,479.36 and 13,755.54 is: 20,615.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,002.98 : 28,479.36 = 13,755.54 : x
  2. Step 2: Convert to fraction form
    19,002.98/28,479.36 = 13,755.54/x
  3. Step 3: Cross multiply
    19,002.98x = 28,479.36 × 13,755.54
  4. Step 4: Simplify right side
    19,002.98x = 391,748,975.65
  5. Step 5: Solve for x
    x = 391,748,975.65/19,002.98
  6. Step 6: Final answer
    x = 20,615.13

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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.