Home / 30,500.43-42,090.80-17,072.92

Finding the Fourth Proportional to 30,500.43, 42,090.80 and 17,072.92

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Solution

The fourth proportional to 30,500.43, 42,090.80 and 17,072.92 is: 23,560.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,500.43 : 42,090.80 = 17,072.92 : x
  2. Step 2: Convert to fraction form
    30,500.43/42,090.80 = 17,072.92/x
  3. Step 3: Cross multiply
    30,500.43x = 42,090.80 × 17,072.92
  4. Step 4: Simplify right side
    30,500.43x = 718,612,861.14
  5. Step 5: Solve for x
    x = 718,612,861.14/30,500.43
  6. Step 6: Final answer
    x = 23,560.75

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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.