Home / 19,620.30-29,429.80-8,527.00

Finding the Fourth Proportional to 19,620.30, 29,429.80 and 8,527.00

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Solution

The fourth proportional to 19,620.30, 29,429.80 and 8,527.00 is: 12,790.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,620.30 : 29,429.80 = 8,527.00 : x
  2. Step 2: Convert to fraction form
    19,620.30/29,429.80 = 8,527.00/x
  3. Step 3: Cross multiply
    19,620.30x = 29,429.80 × 8,527.00
  4. Step 4: Simplify right side
    19,620.30x = 250,947,936.06
  5. Step 5: Solve for x
    x = 250,947,936.06/19,620.30
  6. Step 6: Final answer
    x = 12,790.22

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Why These Related Problems?

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