Home / 21,200.63-29,257.98-11,769.35

Finding the Fourth Proportional to 21,200.63, 29,257.98 and 11,769.35

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Solution

The fourth proportional to 21,200.63, 29,257.98 and 11,769.35 is: 16,242.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,200.63 : 29,257.98 = 11,769.35 : x
  2. Step 2: Convert to fraction form
    21,200.63/29,257.98 = 11,769.35/x
  3. Step 3: Cross multiply
    21,200.63x = 29,257.98 × 11,769.35
  4. Step 4: Simplify right side
    21,200.63x = 344,347,406.91
  5. Step 5: Solve for x
    x = 344,347,406.91/21,200.63
  6. Step 6: Final answer
    x = 16,242.32

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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.