Home / 20,294.83-28,005.82-11,340.58

Finding the Fourth Proportional to 20,294.83, 28,005.82 and 11,340.58

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Solution

The fourth proportional to 20,294.83, 28,005.82 and 11,340.58 is: 15,649.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,294.83 : 28,005.82 = 11,340.58 : x
  2. Step 2: Convert to fraction form
    20,294.83/28,005.82 = 11,340.58/x
  3. Step 3: Cross multiply
    20,294.83x = 28,005.82 × 11,340.58
  4. Step 4: Simplify right side
    20,294.83x = 317,602,291.36
  5. Step 5: Solve for x
    x = 317,602,291.36/20,294.83
  6. Step 6: Final answer
    x = 15,649.42

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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.