Home / 21,736.32-29,979.84-14,655.36

Finding the Fourth Proportional to 21,736.32, 29,979.84 and 14,655.36

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Solution

The fourth proportional to 21,736.32, 29,979.84 and 14,655.36 is: 20,213.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,736.32 : 29,979.84 = 14,655.36 : x
  2. Step 2: Convert to fraction form
    21,736.32/29,979.84 = 14,655.36/x
  3. Step 3: Cross multiply
    21,736.32x = 29,979.84 × 14,655.36
  4. Step 4: Simplify right side
    21,736.32x = 439,365,347.94
  5. Step 5: Solve for x
    x = 439,365,347.94/21,736.32
  6. Step 6: Final answer
    x = 20,213.42

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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.