Home / 39,282.96-58,933.67-12,987.71

Finding the Fourth Proportional to 39,282.96, 58,933.67 and 12,987.71

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Solution

The fourth proportional to 39,282.96, 58,933.67 and 12,987.71 is: 19,484.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,282.96 : 58,933.67 = 12,987.71 : x
  2. Step 2: Convert to fraction form
    39,282.96/58,933.67 = 12,987.71/x
  3. Step 3: Cross multiply
    39,282.96x = 58,933.67 × 12,987.71
  4. Step 4: Simplify right side
    39,282.96x = 765,413,055.59
  5. Step 5: Solve for x
    x = 765,413,055.59/39,282.96
  6. Step 6: Final answer
    x = 19,484.61

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1.5x scale

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.