Home / 31,585.40-47,394.58-12,879.26

Finding the Fourth Proportional to 31,585.40, 47,394.58 and 12,879.26

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Solution

The fourth proportional to 31,585.40, 47,394.58 and 12,879.26 is: 19,325.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,585.40 : 47,394.58 = 12,879.26 : x
  2. Step 2: Convert to fraction form
    31,585.40/47,394.58 = 12,879.26/x
  3. Step 3: Cross multiply
    31,585.40x = 47,394.58 × 12,879.26
  4. Step 4: Simplify right side
    31,585.40x = 610,407,118.41
  5. Step 5: Solve for x
    x = 610,407,118.41/31,585.40
  6. Step 6: Final answer
    x = 19,325.61

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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.