Home / 34,106.40-51,129.30-18,319.91

Finding the Fourth Proportional to 34,106.40, 51,129.30 and 18,319.91

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Solution

The fourth proportional to 34,106.40, 51,129.30 and 18,319.91 is: 27,463.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,106.40 : 51,129.30 = 18,319.91 : x
  2. Step 2: Convert to fraction form
    34,106.40/51,129.30 = 18,319.91/x
  3. Step 3: Cross multiply
    34,106.40x = 51,129.30 × 18,319.91
  4. Step 4: Simplify right side
    34,106.40x = 936,683,918.72
  5. Step 5: Solve for x
    x = 936,683,918.72/34,106.40
  6. Step 6: Final answer
    x = 27,463.58

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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.