Home / 20,319.42-30,474.52-9,784.07

Finding the Fourth Proportional to 20,319.42, 30,474.52 and 9,784.07

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Solution

The fourth proportional to 20,319.42, 30,474.52 and 9,784.07 is: 14,673.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,319.42 : 30,474.52 = 9,784.07 : x
  2. Step 2: Convert to fraction form
    20,319.42/30,474.52 = 9,784.07/x
  3. Step 3: Cross multiply
    20,319.42x = 30,474.52 × 9,784.07
  4. Step 4: Simplify right side
    20,319.42x = 298,164,674.87
  5. Step 5: Solve for x
    x = 298,164,674.87/20,319.42
  6. Step 6: Final answer
    x = 14,673.88

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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.