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Finding the Fourth Proportional to 35,295.68, 48,708.20 and 20,188.51

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Solution

The fourth proportional to 35,295.68, 48,708.20 and 20,188.51 is: 27,860.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,295.68 : 48,708.20 = 20,188.51 : x
  2. Step 2: Convert to fraction form
    35,295.68/48,708.20 = 20,188.51/x
  3. Step 3: Cross multiply
    35,295.68x = 48,708.20 × 20,188.51
  4. Step 4: Simplify right side
    35,295.68x = 983,345,911.48
  5. Step 5: Solve for x
    x = 983,345,911.48/35,295.68
  6. Step 6: Final answer
    x = 27,860.23

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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.