Home / 22,171.07-30,596.15-12,739.64

Finding the Fourth Proportional to 22,171.07, 30,596.15 and 12,739.64

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Solution

The fourth proportional to 22,171.07, 30,596.15 and 12,739.64 is: 17,580.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,171.07 : 30,596.15 = 12,739.64 : x
  2. Step 2: Convert to fraction form
    22,171.07/30,596.15 = 12,739.64/x
  3. Step 3: Cross multiply
    22,171.07x = 30,596.15 × 12,739.64
  4. Step 4: Simplify right side
    22,171.07x = 389,783,719.71
  5. Step 5: Solve for x
    x = 389,783,719.71/22,171.07
  6. Step 6: Final answer
    x = 17,580.74

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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.