Home / 29,136.50-43,692.70-9,139.32

Finding the Fourth Proportional to 29,136.50, 43,692.70 and 9,139.32

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Solution

The fourth proportional to 29,136.50, 43,692.70 and 9,139.32 is: 13,705.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,136.50 : 43,692.70 = 9,139.32 : x
  2. Step 2: Convert to fraction form
    29,136.50/43,692.70 = 9,139.32/x
  3. Step 3: Cross multiply
    29,136.50x = 43,692.70 × 9,139.32
  4. Step 4: Simplify right side
    29,136.50x = 399,321,521.27
  5. Step 5: Solve for x
    x = 399,321,521.27/29,136.50
  6. Step 6: Final answer
    x = 13,705.20

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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.