Home / 34,905.40-48,168.91-18,989.48

Finding the Fourth Proportional to 34,905.40, 48,168.91 and 18,989.48

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Solution

The fourth proportional to 34,905.40, 48,168.91 and 18,989.48 is: 26,205.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,905.40 : 48,168.91 = 18,989.48 : x
  2. Step 2: Convert to fraction form
    34,905.40/48,168.91 = 18,989.48/x
  3. Step 3: Cross multiply
    34,905.40x = 48,168.91 × 18,989.48
  4. Step 4: Simplify right side
    34,905.40x = 914,702,553.07
  5. Step 5: Solve for x
    x = 914,702,553.07/34,905.40
  6. Step 6: Final answer
    x = 26,205.19

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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.