Home / 30,148.68-41,605.19-16,720.09

Finding the Fourth Proportional to 30,148.68, 41,605.19 and 16,720.09

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Solution

The fourth proportional to 30,148.68, 41,605.19 and 16,720.09 is: 23,073.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,148.68 : 41,605.19 = 16,720.09 : x
  2. Step 2: Convert to fraction form
    30,148.68/41,605.19 = 16,720.09/x
  3. Step 3: Cross multiply
    30,148.68x = 41,605.19 × 16,720.09
  4. Step 4: Simplify right side
    30,148.68x = 695,642,521.27
  5. Step 5: Solve for x
    x = 695,642,521.27/30,148.68
  6. Step 6: Final answer
    x = 23,073.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.