Home / 30,105.63-45,195.17-28,916.42

Finding the Fourth Proportional to 30,105.63, 45,195.17 and 28,916.42

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Solution

The fourth proportional to 30,105.63, 45,195.17 and 28,916.42 is: 43,409.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,105.63 : 45,195.17 = 28,916.42 : x
  2. Step 2: Convert to fraction form
    30,105.63/45,195.17 = 28,916.42/x
  3. Step 3: Cross multiply
    30,105.63x = 45,195.17 × 28,916.42
  4. Step 4: Simplify right side
    30,105.63x = 1,306,882,147.13
  5. Step 5: Solve for x
    x = 1,306,882,147.13/30,105.63
  6. Step 6: Final answer
    x = 43,409.89

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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.