Home / 21,204.87-29,214.59-16,408.32

Finding the Fourth Proportional to 21,204.87, 29,214.59 and 16,408.32

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Solution

The fourth proportional to 21,204.87, 29,214.59 and 16,408.32 is: 22,606.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,204.87 : 29,214.59 = 16,408.32 : x
  2. Step 2: Convert to fraction form
    21,204.87/29,214.59 = 16,408.32/x
  3. Step 3: Cross multiply
    21,204.87x = 29,214.59 × 16,408.32
  4. Step 4: Simplify right side
    21,204.87x = 479,362,259.35
  5. Step 5: Solve for x
    x = 479,362,259.35/21,204.87
  6. Step 6: Final answer
    x = 22,606.23

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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.