Home / 30,902.02-42,644.70-16,754.86

Finding the Fourth Proportional to 30,902.02, 42,644.70 and 16,754.86

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Solution

The fourth proportional to 30,902.02, 42,644.70 and 16,754.86 is: 23,121.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,902.02 : 42,644.70 = 16,754.86 : x
  2. Step 2: Convert to fraction form
    30,902.02/42,644.70 = 16,754.86/x
  3. Step 3: Cross multiply
    30,902.02x = 42,644.70 × 16,754.86
  4. Step 4: Simplify right side
    30,902.02x = 714,505,978.24
  5. Step 5: Solve for x
    x = 714,505,978.24/30,902.02
  6. Step 6: Final answer
    x = 23,121.66

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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.