Home / 22,228.88-30,675.60-12,157.36

Finding the Fourth Proportional to 22,228.88, 30,675.60 and 12,157.36

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Solution

The fourth proportional to 22,228.88, 30,675.60 and 12,157.36 is: 16,777.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,228.88 : 30,675.60 = 12,157.36 : x
  2. Step 2: Convert to fraction form
    22,228.88/30,675.60 = 12,157.36/x
  3. Step 3: Cross multiply
    22,228.88x = 30,675.60 × 12,157.36
  4. Step 4: Simplify right side
    22,228.88x = 372,934,312.42
  5. Step 5: Solve for x
    x = 372,934,312.42/22,228.88
  6. Step 6: Final answer
    x = 16,777.02

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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.