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Finding the Fourth Proportional to 23,490.87, 32,417.37 and 12,880.77

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Solution

The fourth proportional to 23,490.87, 32,417.37 and 12,880.77 is: 17,775.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,490.87 : 32,417.37 = 12,880.77 : x
  2. Step 2: Convert to fraction form
    23,490.87/32,417.37 = 12,880.77/x
  3. Step 3: Cross multiply
    23,490.87x = 32,417.37 × 12,880.77
  4. Step 4: Simplify right side
    23,490.87x = 417,560,686.97
  5. Step 5: Solve for x
    x = 417,560,686.97/23,490.87
  6. Step 6: Final answer
    x = 17,775.45

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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.