Home / 30,095.43-45,135.45-12,338.61

Finding the Fourth Proportional to 30,095.43, 45,135.45 and 12,338.61

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Solution

The fourth proportional to 30,095.43, 45,135.45 and 12,338.61 is: 18,504.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,095.43 : 45,135.45 = 12,338.61 : x
  2. Step 2: Convert to fraction form
    30,095.43/45,135.45 = 12,338.61/x
  3. Step 3: Cross multiply
    30,095.43x = 45,135.45 × 12,338.61
  4. Step 4: Simplify right side
    30,095.43x = 556,908,714.72
  5. Step 5: Solve for x
    x = 556,908,714.72/30,095.43
  6. Step 6: Final answer
    x = 18,504.76

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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.