Home / 30,660.09-42,311.06-17,235.96

Finding the Fourth Proportional to 30,660.09, 42,311.06 and 17,235.96

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Solution

The fourth proportional to 30,660.09, 42,311.06 and 17,235.96 is: 23,785.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,660.09 : 42,311.06 = 17,235.96 : x
  2. Step 2: Convert to fraction form
    30,660.09/42,311.06 = 17,235.96/x
  3. Step 3: Cross multiply
    30,660.09x = 42,311.06 × 17,235.96
  4. Step 4: Simplify right side
    30,660.09x = 729,271,737.72
  5. Step 5: Solve for x
    x = 729,271,737.72/30,660.09
  6. Step 6: Final answer
    x = 23,785.70

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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.