Home / 30,737.92-42,420.34-23,170.90

Finding the Fourth Proportional to 30,737.92, 42,420.34 and 23,170.90

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Solution

The fourth proportional to 30,737.92, 42,420.34 and 23,170.90 is: 31,977.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,737.92 : 42,420.34 = 23,170.90 : x
  2. Step 2: Convert to fraction form
    30,737.92/42,420.34 = 23,170.90/x
  3. Step 3: Cross multiply
    30,737.92x = 42,420.34 × 23,170.90
  4. Step 4: Simplify right side
    30,737.92x = 982,917,456.11
  5. Step 5: Solve for x
    x = 982,917,456.11/30,737.92
  6. Step 6: Final answer
    x = 31,977.36

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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.