Home / 30,732.52-42,411.46-18,157.28

Finding the Fourth Proportional to 30,732.52, 42,411.46 and 18,157.28

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Solution

The fourth proportional to 30,732.52, 42,411.46 and 18,157.28 is: 25,057.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,732.52 : 42,411.46 = 18,157.28 : x
  2. Step 2: Convert to fraction form
    30,732.52/42,411.46 = 18,157.28/x
  3. Step 3: Cross multiply
    30,732.52x = 42,411.46 × 18,157.28
  4. Step 4: Simplify right side
    30,732.52x = 770,076,754.43
  5. Step 5: Solve for x
    x = 770,076,754.43/30,732.52
  6. Step 6: Final answer
    x = 25,057.39

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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.