Home / 30,660.99-42,311.98-17,232.12

Finding the Fourth Proportional to 30,660.99, 42,311.98 and 17,232.12

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Solution

The fourth proportional to 30,660.99, 42,311.98 and 17,232.12 is: 23,780.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,660.99 : 42,311.98 = 17,232.12 : x
  2. Step 2: Convert to fraction form
    30,660.99/42,311.98 = 17,232.12/x
  3. Step 3: Cross multiply
    30,660.99x = 42,311.98 × 17,232.12
  4. Step 4: Simplify right side
    30,660.99x = 729,125,116.80
  5. Step 5: Solve for x
    x = 729,125,116.80/30,660.99
  6. Step 6: Final answer
    x = 23,780.22

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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.