Home / 30,835.68-42,553.56-18,258

Finding the Fourth Proportional to 30,835.68, 42,553.56 and 18,258

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Solution

The fourth proportional to 30,835.68, 42,553.56 and 18,258 is: 25,196.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,835.68 : 42,553.56 = 18,258 : x
  2. Step 2: Convert to fraction form
    30,835.68/42,553.56 = 18,258/x
  3. Step 3: Cross multiply
    30,835.68x = 42,553.56 × 18,258
  4. Step 4: Simplify right side
    30,835.68x = 776,942,898.48
  5. Step 5: Solve for x
    x = 776,942,898.48/30,835.68
  6. Step 6: Final answer
    x = 25,196.23

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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.