Home / 21,484.14-29,662.58-16,439.36

Finding the Fourth Proportional to 21,484.14, 29,662.58 and 16,439.36

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Solution

The fourth proportional to 21,484.14, 29,662.58 and 16,439.36 is: 22,697.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,484.14 : 29,662.58 = 16,439.36 : x
  2. Step 2: Convert to fraction form
    21,484.14/29,662.58 = 16,439.36/x
  3. Step 3: Cross multiply
    21,484.14x = 29,662.58 × 16,439.36
  4. Step 4: Simplify right side
    21,484.14x = 487,633,831.15
  5. Step 5: Solve for x
    x = 487,633,831.15/21,484.14
  6. Step 6: Final answer
    x = 22,697.39

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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.