Home / 34,139.81-51,218.37-9,515.81

Finding the Fourth Proportional to 34,139.81, 51,218.37 and 9,515.81

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Solution

The fourth proportional to 34,139.81, 51,218.37 and 9,515.81 is: 14,276.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,139.81 : 51,218.37 = 9,515.81 : x
  2. Step 2: Convert to fraction form
    34,139.81/51,218.37 = 9,515.81/x
  3. Step 3: Cross multiply
    34,139.81x = 51,218.37 × 9,515.81
  4. Step 4: Simplify right side
    34,139.81x = 487,384,405.48
  5. Step 5: Solve for x
    x = 487,384,405.48/34,139.81
  6. Step 6: Final answer
    x = 14,276.13

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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.