Home / 30,810.97-42,519.14-16,663.81

Finding the Fourth Proportional to 30,810.97, 42,519.14 and 16,663.81

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Solution

The fourth proportional to 30,810.97, 42,519.14 and 16,663.81 is: 22,996.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,810.97 : 42,519.14 = 16,663.81 : x
  2. Step 2: Convert to fraction form
    30,810.97/42,519.14 = 16,663.81/x
  3. Step 3: Cross multiply
    30,810.97x = 42,519.14 × 16,663.81
  4. Step 4: Simplify right side
    30,810.97x = 708,530,934.96
  5. Step 5: Solve for x
    x = 708,530,934.96/30,810.97
  6. Step 6: Final answer
    x = 22,996.06

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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.