Home / 30,406.15-41,960.10-16,977.64

Finding the Fourth Proportional to 30,406.15, 41,960.10 and 16,977.64

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Solution

The fourth proportional to 30,406.15, 41,960.10 and 16,977.64 is: 23,428.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,406.15 : 41,960.10 = 16,977.64 : x
  2. Step 2: Convert to fraction form
    30,406.15/41,960.10 = 16,977.64/x
  3. Step 3: Cross multiply
    30,406.15x = 41,960.10 × 16,977.64
  4. Step 4: Simplify right side
    30,406.15x = 712,383,472.16
  5. Step 5: Solve for x
    x = 712,383,472.16/30,406.15
  6. Step 6: Final answer
    x = 23,428.93

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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.