Home / 21,827.69-32,743.95-7,790.99

Finding the Fourth Proportional to 21,827.69, 32,743.95 and 7,790.99

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Solution

The fourth proportional to 21,827.69, 32,743.95 and 7,790.99 is: 11,687.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,827.69 : 32,743.95 = 7,790.99 : x
  2. Step 2: Convert to fraction form
    21,827.69/32,743.95 = 7,790.99/x
  3. Step 3: Cross multiply
    21,827.69x = 32,743.95 × 7,790.99
  4. Step 4: Simplify right side
    21,827.69x = 255,107,787.01
  5. Step 5: Solve for x
    x = 255,107,787.01/21,827.69
  6. Step 6: Final answer
    x = 11,687.35

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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.