Home / 19,039.12-28,543.56-7,938.88

Finding the Fourth Proportional to 19,039.12, 28,543.56 and 7,938.88

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Solution

The fourth proportional to 19,039.12, 28,543.56 and 7,938.88 is: 11,902.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,039.12 : 28,543.56 = 7,938.88 : x
  2. Step 2: Convert to fraction form
    19,039.12/28,543.56 = 7,938.88/x
  3. Step 3: Cross multiply
    19,039.12x = 28,543.56 × 7,938.88
  4. Step 4: Simplify right side
    19,039.12x = 226,603,897.61
  5. Step 5: Solve for x
    x = 226,603,897.61/19,039.12
  6. Step 6: Final answer
    x = 11,902.02

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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.