Home / 20,316.28-30,449.04-9,784.34

Finding the Fourth Proportional to 20,316.28, 30,449.04 and 9,784.34

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Solution

The fourth proportional to 20,316.28, 30,449.04 and 9,784.34 is: 14,664.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,316.28 : 30,449.04 = 9,784.34 : x
  2. Step 2: Convert to fraction form
    20,316.28/30,449.04 = 9,784.34/x
  3. Step 3: Cross multiply
    20,316.28x = 30,449.04 × 9,784.34
  4. Step 4: Simplify right side
    20,316.28x = 297,923,607.79
  5. Step 5: Solve for x
    x = 297,923,607.79/20,316.28
  6. Step 6: Final answer
    x = 14,664.28

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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.