Home / 20,483.54-28,270.05-15,193.46

Finding the Fourth Proportional to 20,483.54, 28,270.05 and 15,193.46

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Solution

The fourth proportional to 20,483.54, 28,270.05 and 15,193.46 is: 20,969.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,483.54 : 28,270.05 = 15,193.46 : x
  2. Step 2: Convert to fraction form
    20,483.54/28,270.05 = 15,193.46/x
  3. Step 3: Cross multiply
    20,483.54x = 28,270.05 × 15,193.46
  4. Step 4: Simplify right side
    20,483.54x = 429,519,873.87
  5. Step 5: Solve for x
    x = 429,519,873.87/20,483.54
  6. Step 6: Final answer
    x = 20,969.03

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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.