Home / 34,138.96-51,212.80-13,359.76

Finding the Fourth Proportional to 34,138.96, 51,212.80 and 13,359.76

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Solution

The fourth proportional to 34,138.96, 51,212.80 and 13,359.76 is: 20,041.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,138.96 : 51,212.80 = 13,359.76 : x
  2. Step 2: Convert to fraction form
    34,138.96/51,212.80 = 13,359.76/x
  3. Step 3: Cross multiply
    34,138.96x = 51,212.80 × 13,359.76
  4. Step 4: Simplify right side
    34,138.96x = 684,190,716.93
  5. Step 5: Solve for x
    x = 684,190,716.93/34,138.96
  6. Step 6: Final answer
    x = 20,041.35

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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.