Home / 21,204.80-29,313.60-16,193.60

Finding the Fourth Proportional to 21,204.80, 29,313.60 and 16,193.60

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Solution

The fourth proportional to 21,204.80, 29,313.60 and 16,193.60 is: 22,386.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,204.80 : 29,313.60 = 16,193.60 : x
  2. Step 2: Convert to fraction form
    21,204.80/29,313.60 = 16,193.60/x
  3. Step 3: Cross multiply
    21,204.80x = 29,313.60 × 16,193.60
  4. Step 4: Simplify right side
    21,204.80x = 474,692,712.96
  5. Step 5: Solve for x
    x = 474,692,712.96/21,204.80
  6. Step 6: Final answer
    x = 22,386.10

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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.