Home / 19,348.15-28,999.55-8,938.03

Finding the Fourth Proportional to 19,348.15, 28,999.55 and 8,938.03

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Solution

The fourth proportional to 19,348.15, 28,999.55 and 8,938.03 is: 13,396.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,348.15 : 28,999.55 = 8,938.03 : x
  2. Step 2: Convert to fraction form
    19,348.15/28,999.55 = 8,938.03/x
  3. Step 3: Cross multiply
    19,348.15x = 28,999.55 × 8,938.03
  4. Step 4: Simplify right side
    19,348.15x = 259,198,803.20
  5. Step 5: Solve for x
    x = 259,198,803.20/19,348.15
  6. Step 6: Final answer
    x = 13,396.57

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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.