Home / 30,120.93-45,163.13-13,477.86

Finding the Fourth Proportional to 30,120.93, 45,163.13 and 13,477.86

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Solution

The fourth proportional to 30,120.93, 45,163.13 and 13,477.86 is: 20,208.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,120.93 : 45,163.13 = 13,477.86 : x
  2. Step 2: Convert to fraction form
    30,120.93/45,163.13 = 13,477.86/x
  3. Step 3: Cross multiply
    30,120.93x = 45,163.13 × 13,477.86
  4. Step 4: Simplify right side
    30,120.93x = 608,702,275.91
  5. Step 5: Solve for x
    x = 608,702,275.91/30,120.93
  6. Step 6: Final answer
    x = 20,208.61

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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.