Home / 20,925.24-28,876.68-11,493.60

Finding the Fourth Proportional to 20,925.24, 28,876.68 and 11,493.60

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Solution

The fourth proportional to 20,925.24, 28,876.68 and 11,493.60 is: 15,861.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,925.24 : 28,876.68 = 11,493.60 : x
  2. Step 2: Convert to fraction form
    20,925.24/28,876.68 = 11,493.60/x
  3. Step 3: Cross multiply
    20,925.24x = 28,876.68 × 11,493.60
  4. Step 4: Simplify right side
    20,925.24x = 331,897,009.25
  5. Step 5: Solve for x
    x = 331,897,009.25/20,925.24
  6. Step 6: Final answer
    x = 15,861.08

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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.