Home / 30,480.20-45,746.06-12,025.16

Finding the Fourth Proportional to 30,480.20, 45,746.06 and 12,025.16

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Solution

The fourth proportional to 30,480.20, 45,746.06 and 12,025.16 is: 18,047.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,480.20 : 45,746.06 = 12,025.16 : x
  2. Step 2: Convert to fraction form
    30,480.20/45,746.06 = 12,025.16/x
  3. Step 3: Cross multiply
    30,480.20x = 45,746.06 × 12,025.16
  4. Step 4: Simplify right side
    30,480.20x = 550,103,690.87
  5. Step 5: Solve for x
    x = 550,103,690.87/30,480.20
  6. Step 6: Final answer
    x = 18,047.90

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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.