Home / 28,087.80-42,117.58-9,361.27

Finding the Fourth Proportional to 28,087.80, 42,117.58 and 9,361.27

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Solution

The fourth proportional to 28,087.80, 42,117.58 and 9,361.27 is: 14,037.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,087.80 : 42,117.58 = 9,361.27 : x
  2. Step 2: Convert to fraction form
    28,087.80/42,117.58 = 9,361.27/x
  3. Step 3: Cross multiply
    28,087.80x = 42,117.58 × 9,361.27
  4. Step 4: Simplify right side
    28,087.80x = 394,274,038.13
  5. Step 5: Solve for x
    x = 394,274,038.13/28,087.80
  6. Step 6: Final answer
    x = 14,037.20

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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.