Home / 20,056.13-30,084.89-9,520.72

Finding the Fourth Proportional to 20,056.13, 30,084.89 and 9,520.72

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Solution

The fourth proportional to 20,056.13, 30,084.89 and 9,520.72 is: 14,281.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,056.13 : 30,084.89 = 9,520.72 : x
  2. Step 2: Convert to fraction form
    20,056.13/30,084.89 = 9,520.72/x
  3. Step 3: Cross multiply
    20,056.13x = 30,084.89 × 9,520.72
  4. Step 4: Simplify right side
    20,056.13x = 286,429,847.08
  5. Step 5: Solve for x
    x = 286,429,847.08/20,056.13
  6. Step 6: Final answer
    x = 14,281.41

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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.