Home / 28,435.68-42,655.26-8,714.43

Finding the Fourth Proportional to 28,435.68, 42,655.26 and 8,714.43

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Solution

The fourth proportional to 28,435.68, 42,655.26 and 8,714.43 is: 13,072.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,435.68 : 42,655.26 = 8,714.43 : x
  2. Step 2: Convert to fraction form
    28,435.68/42,655.26 = 8,714.43/x
  3. Step 3: Cross multiply
    28,435.68x = 42,655.26 × 8,714.43
  4. Step 4: Simplify right side
    28,435.68x = 371,716,277.40
  5. Step 5: Solve for x
    x = 371,716,277.40/28,435.68
  6. Step 6: Final answer
    x = 13,072.18

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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.