Home / 19,317.85-28,980.05-5,987.80

Finding the Fourth Proportional to 19,317.85, 28,980.05 and 5,987.80

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Solution

The fourth proportional to 19,317.85, 28,980.05 and 5,987.80 is: 8,982.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,317.85 : 28,980.05 = 5,987.80 : x
  2. Step 2: Convert to fraction form
    19,317.85/28,980.05 = 5,987.80/x
  3. Step 3: Cross multiply
    19,317.85x = 28,980.05 × 5,987.80
  4. Step 4: Simplify right side
    19,317.85x = 173,526,743.39
  5. Step 5: Solve for x
    x = 173,526,743.39/19,317.85
  6. Step 6: Final answer
    x = 8,982.72

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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.