Home / 30,872.64-42,604.24-16,725.52

Finding the Fourth Proportional to 30,872.64, 42,604.24 and 16,725.52

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Solution

The fourth proportional to 30,872.64, 42,604.24 and 16,725.52 is: 23,081.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,872.64 : 42,604.24 = 16,725.52 : x
  2. Step 2: Convert to fraction form
    30,872.64/42,604.24 = 16,725.52/x
  3. Step 3: Cross multiply
    30,872.64x = 42,604.24 × 16,725.52
  4. Step 4: Simplify right side
    30,872.64x = 712,578,068.20
  5. Step 5: Solve for x
    x = 712,578,068.20/30,872.64
  6. Step 6: Final answer
    x = 23,081.22

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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.