Home / 29,640.39-40,903.16-16,211.60

Finding the Fourth Proportional to 29,640.39, 40,903.16 and 16,211.60

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Solution

The fourth proportional to 29,640.39, 40,903.16 and 16,211.60 is: 22,371.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,640.39 : 40,903.16 = 16,211.60 : x
  2. Step 2: Convert to fraction form
    29,640.39/40,903.16 = 16,211.60/x
  3. Step 3: Cross multiply
    29,640.39x = 40,903.16 × 16,211.60
  4. Step 4: Simplify right side
    29,640.39x = 663,105,668.66
  5. Step 5: Solve for x
    x = 663,105,668.66/29,640.39
  6. Step 6: Final answer
    x = 22,371.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.