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Finding the Fourth Proportional to 38,680.40, 53,368.76 and 22,323.54

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Solution

The fourth proportional to 38,680.40, 53,368.76 and 22,323.54 is: 30,800.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,680.40 : 53,368.76 = 22,323.54 : x
  2. Step 2: Convert to fraction form
    38,680.40/53,368.76 = 22,323.54/x
  3. Step 3: Cross multiply
    38,680.40x = 53,368.76 × 22,323.54
  4. Step 4: Simplify right side
    38,680.40x = 1,191,379,536.99
  5. Step 5: Solve for x
    x = 1,191,379,536.99/38,680.40
  6. Step 6: Final answer
    x = 30,800.60

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.