Home / 39,721.65-59,491.72-18,959.73

Finding the Fourth Proportional to 39,721.65, 59,491.72 and 18,959.73

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Solution

The fourth proportional to 39,721.65, 59,491.72 and 18,959.73 is: 28,396.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,721.65 : 59,491.72 = 18,959.73 : x
  2. Step 2: Convert to fraction form
    39,721.65/59,491.72 = 18,959.73/x
  3. Step 3: Cross multiply
    39,721.65x = 59,491.72 × 18,959.73
  4. Step 4: Simplify right side
    39,721.65x = 1,127,946,948.44
  5. Step 5: Solve for x
    x = 1,127,946,948.44/39,721.65
  6. Step 6: Final answer
    x = 28,396.28

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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.