Home / 30,246.15-45,330.89-12,695.61

Finding the Fourth Proportional to 30,246.15, 45,330.89 and 12,695.61

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Solution

The fourth proportional to 30,246.15, 45,330.89 and 12,695.61 is: 19,027.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,246.15 : 45,330.89 = 12,695.61 : x
  2. Step 2: Convert to fraction form
    30,246.15/45,330.89 = 12,695.61/x
  3. Step 3: Cross multiply
    30,246.15x = 45,330.89 × 12,695.61
  4. Step 4: Simplify right side
    30,246.15x = 575,503,236.91
  5. Step 5: Solve for x
    x = 575,503,236.91/30,246.15
  6. Step 6: Final answer
    x = 19,027.32

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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.