Home / 28,620.74-42,875.53-16,102.60

Finding the Fourth Proportional to 28,620.74, 42,875.53 and 16,102.60

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Solution

The fourth proportional to 28,620.74, 42,875.53 and 16,102.60 is: 24,122.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,620.74 : 42,875.53 = 16,102.60 : x
  2. Step 2: Convert to fraction form
    28,620.74/42,875.53 = 16,102.60/x
  3. Step 3: Cross multiply
    28,620.74x = 42,875.53 × 16,102.60
  4. Step 4: Simplify right side
    28,620.74x = 690,407,361.93
  5. Step 5: Solve for x
    x = 690,407,361.93/28,620.74
  6. Step 6: Final answer
    x = 24,122.62

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.