Home / 30,552.28-42,159.96-16,939.31

Finding the Fourth Proportional to 30,552.28, 42,159.96 and 16,939.31

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Solution

The fourth proportional to 30,552.28, 42,159.96 and 16,939.31 is: 23,375.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,552.28 : 42,159.96 = 16,939.31 : x
  2. Step 2: Convert to fraction form
    30,552.28/42,159.96 = 16,939.31/x
  3. Step 3: Cross multiply
    30,552.28x = 42,159.96 × 16,939.31
  4. Step 4: Simplify right side
    30,552.28x = 714,160,421.23
  5. Step 5: Solve for x
    x = 714,160,421.23/30,552.28
  6. Step 6: Final answer
    x = 23,375.03

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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.