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Finding the Fourth Proportional to 30,361.79, 45,545.72 and 9,301.59

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Solution

The fourth proportional to 30,361.79, 45,545.72 and 9,301.59 is: 13,953.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,361.79 : 45,545.72 = 9,301.59 : x
  2. Step 2: Convert to fraction form
    30,361.79/45,545.72 = 9,301.59/x
  3. Step 3: Cross multiply
    30,361.79x = 45,545.72 × 9,301.59
  4. Step 4: Simplify right side
    30,361.79x = 423,647,613.69
  5. Step 5: Solve for x
    x = 423,647,613.69/30,361.79
  6. Step 6: Final answer
    x = 13,953.31

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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.