Home / 22,246.56-30,702.96-12,688.80

Finding the Fourth Proportional to 22,246.56, 30,702.96 and 12,688.80

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Solution

The fourth proportional to 22,246.56, 30,702.96 and 12,688.80 is: 17,512.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,246.56 : 30,702.96 = 12,688.80 : x
  2. Step 2: Convert to fraction form
    22,246.56/30,702.96 = 12,688.80/x
  3. Step 3: Cross multiply
    22,246.56x = 30,702.96 × 12,688.80
  4. Step 4: Simplify right side
    22,246.56x = 389,583,718.85
  5. Step 5: Solve for x
    x = 389,583,718.85/22,246.56
  6. Step 6: Final answer
    x = 17,512.09

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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.