Home / 30,736.08-42,414.65-17,123.80

Finding the Fourth Proportional to 30,736.08, 42,414.65 and 17,123.80

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Solution

The fourth proportional to 30,736.08, 42,414.65 and 17,123.80 is: 23,630.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,736.08 : 42,414.65 = 17,123.80 : x
  2. Step 2: Convert to fraction form
    30,736.08/42,414.65 = 17,123.80/x
  3. Step 3: Cross multiply
    30,736.08x = 42,414.65 × 17,123.80
  4. Step 4: Simplify right side
    30,736.08x = 726,299,887.60
  5. Step 5: Solve for x
    x = 726,299,887.60/30,736.08
  6. Step 6: Final answer
    x = 23,630.21

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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.