Home / 34,386.81-51,594.80-18,786.21

Finding the Fourth Proportional to 34,386.81, 51,594.80 and 18,786.21

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Solution

The fourth proportional to 34,386.81, 51,594.80 and 18,786.21 is: 28,187.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,386.81 : 51,594.80 = 18,786.21 : x
  2. Step 2: Convert to fraction form
    34,386.81/51,594.80 = 18,786.21/x
  3. Step 3: Cross multiply
    34,386.81x = 51,594.80 × 18,786.21
  4. Step 4: Simplify right side
    34,386.81x = 969,270,747.71
  5. Step 5: Solve for x
    x = 969,270,747.71/34,386.81
  6. Step 6: Final answer
    x = 28,187.28

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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.