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Finding the Fourth Proportional to 25,148.40, 37,722.60 and 21,807.60

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Solution

The fourth proportional to 25,148.40, 37,722.60 and 21,807.60 is: 32,711.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,148.40 : 37,722.60 = 21,807.60 : x
  2. Step 2: Convert to fraction form
    25,148.40/37,722.60 = 21,807.60/x
  3. Step 3: Cross multiply
    25,148.40x = 37,722.60 × 21,807.60
  4. Step 4: Simplify right side
    25,148.40x = 822,639,371.76
  5. Step 5: Solve for x
    x = 822,639,371.76/25,148.40
  6. Step 6: Final answer
    x = 32,711.40

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.