Home / 30,189.60-41,660.52-16,761.48

Finding the Fourth Proportional to 30,189.60, 41,660.52 and 16,761.48

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Solution

The fourth proportional to 30,189.60, 41,660.52 and 16,761.48 is: 23,130.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,189.60 : 41,660.52 = 16,761.48 : x
  2. Step 2: Convert to fraction form
    30,189.60/41,660.52 = 16,761.48/x
  3. Step 3: Cross multiply
    30,189.60x = 41,660.52 × 16,761.48
  4. Step 4: Simplify right side
    30,189.60x = 698,291,972.77
  5. Step 5: Solve for x
    x = 698,291,972.77/30,189.60
  6. Step 6: Final answer
    x = 23,130.22

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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.