Home / 30,469.72-42,045.32-17,039.12

Finding the Fourth Proportional to 30,469.72, 42,045.32 and 17,039.12

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Solution

The fourth proportional to 30,469.72, 42,045.32 and 17,039.12 is: 23,512.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,469.72 : 42,045.32 = 17,039.12 : x
  2. Step 2: Convert to fraction form
    30,469.72/42,045.32 = 17,039.12/x
  3. Step 3: Cross multiply
    30,469.72x = 42,045.32 × 17,039.12
  4. Step 4: Simplify right side
    30,469.72x = 716,415,252.92
  5. Step 5: Solve for x
    x = 716,415,252.92/30,469.72
  6. Step 6: Final answer
    x = 23,512.37

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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.