Home / 20,884.14-31,318.47-14,640.96

Finding the Fourth Proportional to 20,884.14, 31,318.47 and 14,640.96

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Solution

The fourth proportional to 20,884.14, 31,318.47 and 14,640.96 is: 21,956.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,884.14 : 31,318.47 = 14,640.96 : x
  2. Step 2: Convert to fraction form
    20,884.14/31,318.47 = 14,640.96/x
  3. Step 3: Cross multiply
    20,884.14x = 31,318.47 × 14,640.96
  4. Step 4: Simplify right side
    20,884.14x = 458,532,466.53
  5. Step 5: Solve for x
    x = 458,532,466.53/20,884.14
  6. Step 6: Final answer
    x = 21,956.01

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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.