Home / 28,081.11-42,127.74-8,361.26

Finding the Fourth Proportional to 28,081.11, 42,127.74 and 8,361.26

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Solution

The fourth proportional to 28,081.11, 42,127.74 and 8,361.26 is: 12,543.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,081.11 : 42,127.74 = 8,361.26 : x
  2. Step 2: Convert to fraction form
    28,081.11/42,127.74 = 8,361.26/x
  3. Step 3: Cross multiply
    28,081.11x = 42,127.74 × 8,361.26
  4. Step 4: Simplify right side
    28,081.11x = 352,240,776.71
  5. Step 5: Solve for x
    x = 352,240,776.71/28,081.11
  6. Step 6: Final answer
    x = 12,543.69

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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.