Home / 22,209.13-30,650.04-12,777.49

Finding the Fourth Proportional to 22,209.13, 30,650.04 and 12,777.49

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Solution

The fourth proportional to 22,209.13, 30,650.04 and 12,777.49 is: 17,633.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,209.13 : 30,650.04 = 12,777.49 : x
  2. Step 2: Convert to fraction form
    22,209.13/30,650.04 = 12,777.49/x
  3. Step 3: Cross multiply
    22,209.13x = 30,650.04 × 12,777.49
  4. Step 4: Simplify right side
    22,209.13x = 391,630,579.60
  5. Step 5: Solve for x
    x = 391,630,579.60/22,209.13
  6. Step 6: Final answer
    x = 17,633.77

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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.