Home / 21,283.04-29,370.32-11,722.75

Finding the Fourth Proportional to 21,283.04, 29,370.32 and 11,722.75

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Solution

The fourth proportional to 21,283.04, 29,370.32 and 11,722.75 is: 16,177.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,283.04 : 29,370.32 = 11,722.75 : x
  2. Step 2: Convert to fraction form
    21,283.04/29,370.32 = 11,722.75/x
  3. Step 3: Cross multiply
    21,283.04x = 29,370.32 × 11,722.75
  4. Step 4: Simplify right side
    21,283.04x = 344,300,713.31
  5. Step 5: Solve for x
    x = 344,300,713.31/21,283.04
  6. Step 6: Final answer
    x = 16,177.23

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1.5x scale

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.