Home / 19,629.80-29,433.90-6,475.40

Finding the Fourth Proportional to 19,629.80, 29,433.90 and 6,475.40

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Solution

The fourth proportional to 19,629.80, 29,433.90 and 6,475.40 is: 9,709.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,629.80 : 29,433.90 = 6,475.40 : x
  2. Step 2: Convert to fraction form
    19,629.80/29,433.90 = 6,475.40/x
  3. Step 3: Cross multiply
    19,629.80x = 29,433.90 × 6,475.40
  4. Step 4: Simplify right side
    19,629.80x = 190,596,276.06
  5. Step 5: Solve for x
    x = 190,596,276.06/19,629.80
  6. Step 6: Final answer
    x = 9,709.54

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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.