Home / 22,303.26-30,778.25-12,871.62

Finding the Fourth Proportional to 22,303.26, 30,778.25 and 12,871.62

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Solution

The fourth proportional to 22,303.26, 30,778.25 and 12,871.62 is: 17,762.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,303.26 : 30,778.25 = 12,871.62 : x
  2. Step 2: Convert to fraction form
    22,303.26/30,778.25 = 12,871.62/x
  3. Step 3: Cross multiply
    22,303.26x = 30,778.25 × 12,871.62
  4. Step 4: Simplify right side
    22,303.26x = 396,165,873.91
  5. Step 5: Solve for x
    x = 396,165,873.91/22,303.26
  6. Step 6: Final answer
    x = 17,762.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.