Home / 19,255.59-28,870.43-9,883.89

Finding the Fourth Proportional to 19,255.59, 28,870.43 and 9,883.89

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Solution

The fourth proportional to 19,255.59, 28,870.43 and 9,883.89 is: 14,819.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,255.59 : 28,870.43 = 9,883.89 : x
  2. Step 2: Convert to fraction form
    19,255.59/28,870.43 = 9,883.89/x
  3. Step 3: Cross multiply
    19,255.59x = 28,870.43 × 9,883.89
  4. Step 4: Simplify right side
    19,255.59x = 285,352,104.95
  5. Step 5: Solve for x
    x = 285,352,104.95/19,255.59
  6. Step 6: Final answer
    x = 14,819.18

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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.