Home / 30,659.72-42,310.58-17,913.65

Finding the Fourth Proportional to 30,659.72, 42,310.58 and 17,913.65

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Solution

The fourth proportional to 30,659.72, 42,310.58 and 17,913.65 is: 24,720.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,659.72 : 42,310.58 = 17,913.65 : x
  2. Step 2: Convert to fraction form
    30,659.72/42,310.58 = 17,913.65/x
  3. Step 3: Cross multiply
    30,659.72x = 42,310.58 × 17,913.65
  4. Step 4: Simplify right side
    30,659.72x = 757,936,620.30
  5. Step 5: Solve for x
    x = 757,936,620.30/30,659.72
  6. Step 6: Final answer
    x = 24,720.93

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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.