Home / 34,130.64-51,165.84-13,339.60

Finding the Fourth Proportional to 34,130.64, 51,165.84 and 13,339.60

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Solution

The fourth proportional to 34,130.64, 51,165.84 and 13,339.60 is: 19,997.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,130.64 : 51,165.84 = 13,339.60 : x
  2. Step 2: Convert to fraction form
    34,130.64/51,165.84 = 13,339.60/x
  3. Step 3: Cross multiply
    34,130.64x = 51,165.84 × 13,339.60
  4. Step 4: Simplify right side
    34,130.64x = 682,531,839.26
  5. Step 5: Solve for x
    x = 682,531,839.26/34,130.64
  6. Step 6: Final answer
    x = 19,997.63

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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.