Home / 21,486.14-29,665.34-16,441.36

Finding the Fourth Proportional to 21,486.14, 29,665.34 and 16,441.36

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Solution

The fourth proportional to 21,486.14, 29,665.34 and 16,441.36 is: 22,700.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,486.14 : 29,665.34 = 16,441.36 : x
  2. Step 2: Convert to fraction form
    21,486.14/29,665.34 = 16,441.36/x
  3. Step 3: Cross multiply
    21,486.14x = 29,665.34 × 16,441.36
  4. Step 4: Simplify right side
    21,486.14x = 487,738,534.46
  5. Step 5: Solve for x
    x = 487,738,534.46/21,486.14
  6. Step 6: Final answer
    x = 22,700.15

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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.