Home / 38,168.72-52,673.68-21,172.41

Finding the Fourth Proportional to 38,168.72, 52,673.68 and 21,172.41

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Solution

The fourth proportional to 38,168.72, 52,673.68 and 21,172.41 is: 29,218.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,168.72 : 52,673.68 = 21,172.41 : x
  2. Step 2: Convert to fraction form
    38,168.72/52,673.68 = 21,172.41/x
  3. Step 3: Cross multiply
    38,168.72x = 52,673.68 × 21,172.41
  4. Step 4: Simplify right side
    38,168.72x = 1,115,228,749.17
  5. Step 5: Solve for x
    x = 1,115,228,749.17/38,168.72
  6. Step 6: Final answer
    x = 29,218.40

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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.