Home / 39,288.18-58,926.42-12,993.06

Finding the Fourth Proportional to 39,288.18, 58,926.42 and 12,993.06

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Solution

The fourth proportional to 39,288.18, 58,926.42 and 12,993.06 is: 19,487.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,288.18 : 58,926.42 = 12,993.06 : x
  2. Step 2: Convert to fraction form
    39,288.18/58,926.42 = 12,993.06/x
  3. Step 3: Cross multiply
    39,288.18x = 58,926.42 × 12,993.06
  4. Step 4: Simplify right side
    39,288.18x = 765,634,510.65
  5. Step 5: Solve for x
    x = 765,634,510.65/39,288.18
  6. Step 6: Final answer
    x = 19,487.66

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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.