Home / 30,579.82-42,199.54-17,154.37

Finding the Fourth Proportional to 30,579.82, 42,199.54 and 17,154.37

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Solution

The fourth proportional to 30,579.82, 42,199.54 and 17,154.37 is: 23,672.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,579.82 : 42,199.54 = 17,154.37 : x
  2. Step 2: Convert to fraction form
    30,579.82/42,199.54 = 17,154.37/x
  3. Step 3: Cross multiply
    30,579.82x = 42,199.54 × 17,154.37
  4. Step 4: Simplify right side
    30,579.82x = 723,906,522.99
  5. Step 5: Solve for x
    x = 723,906,522.99/30,579.82
  6. Step 6: Final answer
    x = 23,672.69

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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.