Home / 34,128.51-51,190.98-13,078.64

Finding the Fourth Proportional to 34,128.51, 51,190.98 and 13,078.64

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Solution

The fourth proportional to 34,128.51, 51,190.98 and 13,078.64 is: 19,617.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,128.51 : 51,190.98 = 13,078.64 : x
  2. Step 2: Convert to fraction form
    34,128.51/51,190.98 = 13,078.64/x
  3. Step 3: Cross multiply
    34,128.51x = 51,190.98 × 13,078.64
  4. Step 4: Simplify right side
    34,128.51x = 669,508,142.71
  5. Step 5: Solve for x
    x = 669,508,142.71/34,128.51
  6. Step 6: Final answer
    x = 19,617.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.