Home / 30,821.18-42,532.91-16,673.72

Finding the Fourth Proportional to 30,821.18, 42,532.91 and 16,673.72

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Solution

The fourth proportional to 30,821.18, 42,532.91 and 16,673.72 is: 23,009.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,821.18 : 42,532.91 = 16,673.72 : x
  2. Step 2: Convert to fraction form
    30,821.18/42,532.91 = 16,673.72/x
  3. Step 3: Cross multiply
    30,821.18x = 42,532.91 × 16,673.72
  4. Step 4: Simplify right side
    30,821.18x = 709,181,536.09
  5. Step 5: Solve for x
    x = 709,181,536.09/30,821.18
  6. Step 6: Final answer
    x = 23,009.56

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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.