Home / 38,160.21-52,659-21,162.36

Finding the Fourth Proportional to 38,160.21, 52,659 and 21,162.36

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Solution

The fourth proportional to 38,160.21, 52,659 and 21,162.36 is: 29,202.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,160.21 : 52,659 = 21,162.36 : x
  2. Step 2: Convert to fraction form
    38,160.21/52,659 = 21,162.36/x
  3. Step 3: Cross multiply
    38,160.21x = 52,659 × 21,162.36
  4. Step 4: Simplify right side
    38,160.21x = 1,114,388,715.24
  5. Step 5: Solve for x
    x = 1,114,388,715.24/38,160.21
  6. Step 6: Final answer
    x = 29,202.90

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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.