Home / 39,929.79-59,907.16-11,849.99

Finding the Fourth Proportional to 39,929.79, 59,907.16 and 11,849.99

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Solution

The fourth proportional to 39,929.79, 59,907.16 and 11,849.99 is: 17,778.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,929.79 : 59,907.16 = 11,849.99 : x
  2. Step 2: Convert to fraction form
    39,929.79/59,907.16 = 11,849.99/x
  3. Step 3: Cross multiply
    39,929.79x = 59,907.16 × 11,849.99
  4. Step 4: Simplify right side
    39,929.79x = 709,898,962.21
  5. Step 5: Solve for x
    x = 709,898,962.21/39,929.79
  6. Step 6: Final answer
    x = 17,778.68

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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.