Home / 34,129.72-51,159.47-13,064.80

Finding the Fourth Proportional to 34,129.72, 51,159.47 and 13,064.80

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Solution

The fourth proportional to 34,129.72, 51,159.47 and 13,064.80 is: 19,583.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,129.72 : 51,159.47 = 13,064.80 : x
  2. Step 2: Convert to fraction form
    34,129.72/51,159.47 = 13,064.80/x
  3. Step 3: Cross multiply
    34,129.72x = 51,159.47 × 13,064.80
  4. Step 4: Simplify right side
    34,129.72x = 668,388,178.33
  5. Step 5: Solve for x
    x = 668,388,178.33/34,129.72
  6. Step 6: Final answer
    x = 19,583.76

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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.