Home / 30,080.20-45,111.19-12,545.93

Finding the Fourth Proportional to 30,080.20, 45,111.19 and 12,545.93

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Solution

The fourth proportional to 30,080.20, 45,111.19 and 12,545.93 is: 18,815.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,080.20 : 45,111.19 = 12,545.93 : x
  2. Step 2: Convert to fraction form
    30,080.20/45,111.19 = 12,545.93/x
  3. Step 3: Cross multiply
    30,080.20x = 45,111.19 × 12,545.93
  4. Step 4: Simplify right side
    30,080.20x = 565,961,774.73
  5. Step 5: Solve for x
    x = 565,961,774.73/30,080.20
  6. Step 6: Final answer
    x = 18,815.09

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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.