Home / 20,114.70-30,204.45-13,569.90

Finding the Fourth Proportional to 20,114.70, 30,204.45 and 13,569.90

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Solution

The fourth proportional to 20,114.70, 30,204.45 and 13,569.90 is: 20,376.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,114.70 : 30,204.45 = 13,569.90 : x
  2. Step 2: Convert to fraction form
    20,114.70/30,204.45 = 13,569.90/x
  3. Step 3: Cross multiply
    20,114.70x = 30,204.45 × 13,569.90
  4. Step 4: Simplify right side
    20,114.70x = 409,871,366.06
  5. Step 5: Solve for x
    x = 409,871,366.06/20,114.70
  6. Step 6: Final answer
    x = 20,376.71

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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.