Home / 28,052.46-42,078.57-11,412.36

Finding the Fourth Proportional to 28,052.46, 42,078.57 and 11,412.36

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Solution

The fourth proportional to 28,052.46, 42,078.57 and 11,412.36 is: 17,118.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,052.46 : 42,078.57 = 11,412.36 : x
  2. Step 2: Convert to fraction form
    28,052.46/42,078.57 = 11,412.36/x
  3. Step 3: Cross multiply
    28,052.46x = 42,078.57 × 11,412.36
  4. Step 4: Simplify right side
    28,052.46x = 480,215,521.67
  5. Step 5: Solve for x
    x = 480,215,521.67/28,052.46
  6. Step 6: Final answer
    x = 17,118.48

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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.