Home / 30,663.12-42,315.04-17,234.92

Finding the Fourth Proportional to 30,663.12, 42,315.04 and 17,234.92

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Solution

The fourth proportional to 30,663.12, 42,315.04 and 17,234.92 is: 23,784.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,663.12 : 42,315.04 = 17,234.92 : x
  2. Step 2: Convert to fraction form
    30,663.12/42,315.04 = 17,234.92/x
  3. Step 3: Cross multiply
    30,663.12x = 42,315.04 × 17,234.92
  4. Step 4: Simplify right side
    30,663.12x = 729,296,329.20
  5. Step 5: Solve for x
    x = 729,296,329.20/30,663.12
  6. Step 6: Final answer
    x = 23,784.15

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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.