Home / 30,635.96-42,276.29-17,889.84

Finding the Fourth Proportional to 30,635.96, 42,276.29 and 17,889.84

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Solution

The fourth proportional to 30,635.96, 42,276.29 and 17,889.84 is: 24,687.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,635.96 : 42,276.29 = 17,889.84 : x
  2. Step 2: Convert to fraction form
    30,635.96/42,276.29 = 17,889.84/x
  3. Step 3: Cross multiply
    30,635.96x = 42,276.29 × 17,889.84
  4. Step 4: Simplify right side
    30,635.96x = 756,315,974.44
  5. Step 5: Solve for x
    x = 756,315,974.44/30,635.96
  6. Step 6: Final answer
    x = 24,687.20

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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.