Home / 39,992.90-59,983.18-13,339.35

Finding the Fourth Proportional to 39,992.90, 59,983.18 and 13,339.35

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Solution

The fourth proportional to 39,992.90, 59,983.18 and 13,339.35 is: 20,006.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,992.90 : 59,983.18 = 13,339.35 : x
  2. Step 2: Convert to fraction form
    39,992.90/59,983.18 = 13,339.35/x
  3. Step 3: Cross multiply
    39,992.90x = 59,983.18 × 13,339.35
  4. Step 4: Simplify right side
    39,992.90x = 800,136,598.78
  5. Step 5: Solve for x
    x = 800,136,598.78/39,992.90
  6. Step 6: Final answer
    x = 20,006.97

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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.