Home / 39,576.74-54,615.90-21,672.84

Finding the Fourth Proportional to 39,576.74, 54,615.90 and 21,672.84

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Solution

The fourth proportional to 39,576.74, 54,615.90 and 21,672.84 is: 29,908.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,576.74 : 54,615.90 = 21,672.84 : x
  2. Step 2: Convert to fraction form
    39,576.74/54,615.90 = 21,672.84/x
  3. Step 3: Cross multiply
    39,576.74x = 54,615.90 × 21,672.84
  4. Step 4: Simplify right side
    39,576.74x = 1,183,681,662.16
  5. Step 5: Solve for x
    x = 1,183,681,662.16/39,576.74
  6. Step 6: Final answer
    x = 29,908.52

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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.