Home / 31,081.74-46,642.05-12,613.74

Finding the Fourth Proportional to 31,081.74, 46,642.05 and 12,613.74

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Solution

The fourth proportional to 31,081.74, 46,642.05 and 12,613.74 is: 18,928.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,081.74 : 46,642.05 = 12,613.74 : x
  2. Step 2: Convert to fraction form
    31,081.74/46,642.05 = 12,613.74/x
  3. Step 3: Cross multiply
    31,081.74x = 46,642.05 × 12,613.74
  4. Step 4: Simplify right side
    31,081.74x = 588,330,691.77
  5. Step 5: Solve for x
    x = 588,330,691.77/31,081.74
  6. Step 6: Final answer
    x = 18,928.50

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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.