Home / 20,493.76-30,703.56-9,409.72

Finding the Fourth Proportional to 20,493.76, 30,703.56 and 9,409.72

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Solution

The fourth proportional to 20,493.76, 30,703.56 and 9,409.72 is: 14,097.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,493.76 : 30,703.56 = 9,409.72 : x
  2. Step 2: Convert to fraction form
    20,493.76/30,703.56 = 9,409.72/x
  3. Step 3: Cross multiply
    20,493.76x = 30,703.56 × 9,409.72
  4. Step 4: Simplify right side
    20,493.76x = 288,911,902.60
  5. Step 5: Solve for x
    x = 288,911,902.60/20,493.76
  6. Step 6: Final answer
    x = 14,097.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.