Home / 19,527.80-26,955.43-12,815.60

Finding the Fourth Proportional to 19,527.80, 26,955.43 and 12,815.60

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Solution

The fourth proportional to 19,527.80, 26,955.43 and 12,815.60 is: 17,690.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,527.80 : 26,955.43 = 12,815.60 : x
  2. Step 2: Convert to fraction form
    19,527.80/26,955.43 = 12,815.60/x
  3. Step 3: Cross multiply
    19,527.80x = 26,955.43 × 12,815.60
  4. Step 4: Simplify right side
    19,527.80x = 345,449,913.98
  5. Step 5: Solve for x
    x = 345,449,913.98/19,527.80
  6. Step 6: Final answer
    x = 17,690.16

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Why These Related Problems?

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