Home / 20,140.40-27,817.02-13,414.96

Finding the Fourth Proportional to 20,140.40, 27,817.02 and 13,414.96

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Solution

The fourth proportional to 20,140.40, 27,817.02 and 13,414.96 is: 18,528.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,140.40 : 27,817.02 = 13,414.96 : x
  2. Step 2: Convert to fraction form
    20,140.40/27,817.02 = 13,414.96/x
  3. Step 3: Cross multiply
    20,140.40x = 27,817.02 × 13,414.96
  4. Step 4: Simplify right side
    20,140.40x = 373,164,210.62
  5. Step 5: Solve for x
    x = 373,164,210.62/20,140.40
  6. Step 6: Final answer
    x = 18,528.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.