Home / 21,573.66-29,765.84-12,623.36

Finding the Fourth Proportional to 21,573.66, 29,765.84 and 12,623.36

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Solution

The fourth proportional to 21,573.66, 29,765.84 and 12,623.36 is: 17,416.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,573.66 : 29,765.84 = 12,623.36 : x
  2. Step 2: Convert to fraction form
    21,573.66/29,765.84 = 12,623.36/x
  3. Step 3: Cross multiply
    21,573.66x = 29,765.84 × 12,623.36
  4. Step 4: Simplify right side
    21,573.66x = 375,744,914.02
  5. Step 5: Solve for x
    x = 375,744,914.02/21,573.66
  6. Step 6: Final answer
    x = 17,416.84

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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.