Home / 39,575.31-54,615.16-21,672.01

Finding the Fourth Proportional to 39,575.31, 54,615.16 and 21,672.01

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Solution

The fourth proportional to 39,575.31, 54,615.16 and 21,672.01 is: 29,908.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,575.31 : 54,615.16 = 21,672.01 : x
  2. Step 2: Convert to fraction form
    39,575.31/54,615.16 = 21,672.01/x
  3. Step 3: Cross multiply
    39,575.31x = 54,615.16 × 21,672.01
  4. Step 4: Simplify right side
    39,575.31x = 1,183,620,239.49
  5. Step 5: Solve for x
    x = 1,183,620,239.49/39,575.31
  6. Step 6: Final answer
    x = 29,908.05

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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.