Home / 39,128.60-58,692.78-13,846.88

Finding the Fourth Proportional to 39,128.60, 58,692.78 and 13,846.88

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Solution

The fourth proportional to 39,128.60, 58,692.78 and 13,846.88 is: 20,770.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,128.60 : 58,692.78 = 13,846.88 : x
  2. Step 2: Convert to fraction form
    39,128.60/58,692.78 = 13,846.88/x
  3. Step 3: Cross multiply
    39,128.60x = 58,692.78 × 13,846.88
  4. Step 4: Simplify right side
    39,128.60x = 812,711,881.53
  5. Step 5: Solve for x
    x = 812,711,881.53/39,128.60
  6. Step 6: Final answer
    x = 20,770.28

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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.