Home / 22,182.09-30,611.30-12,750.09

Finding the Fourth Proportional to 22,182.09, 30,611.30 and 12,750.09

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Solution

The fourth proportional to 22,182.09, 30,611.30 and 12,750.09 is: 17,595.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,182.09 : 30,611.30 = 12,750.09 : x
  2. Step 2: Convert to fraction form
    22,182.09/30,611.30 = 12,750.09/x
  3. Step 3: Cross multiply
    22,182.09x = 30,611.30 × 12,750.09
  4. Step 4: Simplify right side
    22,182.09x = 390,296,766.27
  5. Step 5: Solve for x
    x = 390,296,766.27/22,182.09
  6. Step 6: Final answer
    x = 17,595.13

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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.