Home / 30,487.10-45,719.26-10,490.99

Finding the Fourth Proportional to 30,487.10, 45,719.26 and 10,490.99

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Solution

The fourth proportional to 30,487.10, 45,719.26 and 10,490.99 is: 15,732.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,487.10 : 45,719.26 = 10,490.99 : x
  2. Step 2: Convert to fraction form
    30,487.10/45,719.26 = 10,490.99/x
  3. Step 3: Cross multiply
    30,487.10x = 45,719.26 × 10,490.99
  4. Step 4: Simplify right side
    30,487.10x = 479,640,044.64
  5. Step 5: Solve for x
    x = 479,640,044.64/30,487.10
  6. Step 6: Final answer
    x = 15,732.56

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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.