Home / 29,690.30-40,930.36-18,353.39

Finding the Fourth Proportional to 29,690.30, 40,930.36 and 18,353.39

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Solution

The fourth proportional to 29,690.30, 40,930.36 and 18,353.39 is: 25,301.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,690.30 : 40,930.36 = 18,353.39 : x
  2. Step 2: Convert to fraction form
    29,690.30/40,930.36 = 18,353.39/x
  3. Step 3: Cross multiply
    29,690.30x = 40,930.36 × 18,353.39
  4. Step 4: Simplify right side
    29,690.30x = 751,210,712.62
  5. Step 5: Solve for x
    x = 751,210,712.62/29,690.30
  6. Step 6: Final answer
    x = 25,301.56

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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.