Home / 21,204.49-31,757.52-20,466.40

Finding the Fourth Proportional to 21,204.49, 31,757.52 and 20,466.40

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Solution

The fourth proportional to 21,204.49, 31,757.52 and 20,466.40 is: 30,652.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,204.49 : 31,757.52 = 20,466.40 : x
  2. Step 2: Convert to fraction form
    21,204.49/31,757.52 = 20,466.40/x
  3. Step 3: Cross multiply
    21,204.49x = 31,757.52 × 20,466.40
  4. Step 4: Simplify right side
    21,204.49x = 649,962,107.33
  5. Step 5: Solve for x
    x = 649,962,107.33/21,204.49
  6. Step 6: Final answer
    x = 30,652.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.