Home / 19,036-28,534.56-7,948.72

Finding the Fourth Proportional to 19,036, 28,534.56 and 7,948.72

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Solution

The fourth proportional to 19,036, 28,534.56 and 7,948.72 is: 11,914.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,036 : 28,534.56 = 7,948.72 : x
  2. Step 2: Convert to fraction form
    19,036/28,534.56 = 7,948.72/x
  3. Step 3: Cross multiply
    19,036x = 28,534.56 × 7,948.72
  4. Step 4: Simplify right side
    19,036x = 226,813,227.76
  5. Step 5: Solve for x
    x = 226,813,227.76/19,036
  6. Step 6: Final answer
    x = 11,914.96

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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.