Home / 28,361.26-42,515.60-12,557.87

Finding the Fourth Proportional to 28,361.26, 42,515.60 and 12,557.87

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Solution

The fourth proportional to 28,361.26, 42,515.60 and 12,557.87 is: 18,825.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,361.26 : 42,515.60 = 12,557.87 : x
  2. Step 2: Convert to fraction form
    28,361.26/42,515.60 = 12,557.87/x
  3. Step 3: Cross multiply
    28,361.26x = 42,515.60 × 12,557.87
  4. Step 4: Simplify right side
    28,361.26x = 533,905,377.77
  5. Step 5: Solve for x
    x = 533,905,377.77/28,361.26
  6. Step 6: Final answer
    x = 18,825.16

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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.