Home / 30,164.90-45,241.20-11,438.51

Finding the Fourth Proportional to 30,164.90, 45,241.20 and 11,438.51

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Solution

The fourth proportional to 30,164.90, 45,241.20 and 11,438.51 is: 17,155.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,164.90 : 45,241.20 = 11,438.51 : x
  2. Step 2: Convert to fraction form
    30,164.90/45,241.20 = 11,438.51/x
  3. Step 3: Cross multiply
    30,164.90x = 45,241.20 × 11,438.51
  4. Step 4: Simplify right side
    30,164.90x = 517,491,692.41
  5. Step 5: Solve for x
    x = 517,491,692.41/30,164.90
  6. Step 6: Final answer
    x = 17,155.43

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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.