Home / 20,925.10-28,877.14-11,365.34

Finding the Fourth Proportional to 20,925.10, 28,877.14 and 11,365.34

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Solution

The fourth proportional to 20,925.10, 28,877.14 and 11,365.34 is: 15,684.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,925.10 : 28,877.14 = 11,365.34 : x
  2. Step 2: Convert to fraction form
    20,925.10/28,877.14 = 11,365.34/x
  3. Step 3: Cross multiply
    20,925.10x = 28,877.14 × 11,365.34
  4. Step 4: Simplify right side
    20,925.10x = 328,198,514.33
  5. Step 5: Solve for x
    x = 328,198,514.33/20,925.10
  6. Step 6: Final answer
    x = 15,684.44

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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.