Home / 30,403.20-41,952.12-16,972.58

Finding the Fourth Proportional to 30,403.20, 41,952.12 and 16,972.58

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Solution

The fourth proportional to 30,403.20, 41,952.12 and 16,972.58 is: 23,419.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,403.20 : 41,952.12 = 16,972.58 : x
  2. Step 2: Convert to fraction form
    30,403.20/41,952.12 = 16,972.58/x
  3. Step 3: Cross multiply
    30,403.20x = 41,952.12 × 16,972.58
  4. Step 4: Simplify right side
    30,403.20x = 712,035,712.87
  5. Step 5: Solve for x
    x = 712,035,712.87/30,403.20
  6. Step 6: Final answer
    x = 23,419.76

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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.