Home / 30,149.04-41,605.92-16,720.56

Finding the Fourth Proportional to 30,149.04, 41,605.92 and 16,720.56

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Solution

The fourth proportional to 30,149.04, 41,605.92 and 16,720.56 is: 23,074.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,149.04 : 41,605.92 = 16,720.56 : x
  2. Step 2: Convert to fraction form
    30,149.04/41,605.92 = 16,720.56/x
  3. Step 3: Cross multiply
    30,149.04x = 41,605.92 × 16,720.56
  4. Step 4: Simplify right side
    30,149.04x = 695,674,281.72
  5. Step 5: Solve for x
    x = 695,674,281.72/30,149.04
  6. Step 6: Final answer
    x = 23,074.51

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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.