Home / 39,654.40-54,722.24-21,749.44

Finding the Fourth Proportional to 39,654.40, 54,722.24 and 21,749.44

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Solution

The fourth proportional to 39,654.40, 54,722.24 and 21,749.44 is: 30,013.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,654.40 : 54,722.24 = 21,749.44 : x
  2. Step 2: Convert to fraction form
    39,654.40/54,722.24 = 21,749.44/x
  3. Step 3: Cross multiply
    39,654.40x = 54,722.24 × 21,749.44
  4. Step 4: Simplify right side
    39,654.40x = 1,190,178,075.55
  5. Step 5: Solve for x
    x = 1,190,178,075.55/39,654.40
  6. Step 6: Final answer
    x = 30,013.77

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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.