Home / 45,648.90-68,429.61-19,317.42

Finding the Fourth Proportional to 45,648.90, 68,429.61 and 19,317.42

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Solution

The fourth proportional to 45,648.90, 68,429.61 and 19,317.42 is: 28,957.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,648.90 : 68,429.61 = 19,317.42 : x
  2. Step 2: Convert to fraction form
    45,648.90/68,429.61 = 19,317.42/x
  3. Step 3: Cross multiply
    45,648.90x = 68,429.61 × 19,317.42
  4. Step 4: Simplify right side
    45,648.90x = 1,321,883,516.81
  5. Step 5: Solve for x
    x = 1,321,883,516.81/45,648.90
  6. Step 6: Final answer
    x = 28,957.62

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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.