Home / 21,733.80-32,558.78-12,975.72

Finding the Fourth Proportional to 21,733.80, 32,558.78 and 12,975.72

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Solution

The fourth proportional to 21,733.80, 32,558.78 and 12,975.72 is: 19,438.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,733.80 : 32,558.78 = 12,975.72 : x
  2. Step 2: Convert to fraction form
    21,733.80/32,558.78 = 12,975.72/x
  3. Step 3: Cross multiply
    21,733.80x = 32,558.78 × 12,975.72
  4. Step 4: Simplify right side
    21,733.80x = 422,473,612.82
  5. Step 5: Solve for x
    x = 422,473,612.82/21,733.80
  6. Step 6: Final answer
    x = 19,438.55

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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.