Home / 22,245.64-30,702.44-12,685.55

Finding the Fourth Proportional to 22,245.64, 30,702.44 and 12,685.55

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Solution

The fourth proportional to 22,245.64, 30,702.44 and 12,685.55 is: 17,508.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,245.64 : 30,702.44 = 12,685.55 : x
  2. Step 2: Convert to fraction form
    22,245.64/30,702.44 = 12,685.55/x
  3. Step 3: Cross multiply
    22,245.64x = 30,702.44 × 12,685.55
  4. Step 4: Simplify right side
    22,245.64x = 389,477,337.74
  5. Step 5: Solve for x
    x = 389,477,337.74/22,245.64
  6. Step 6: Final answer
    x = 17,508.03

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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.