Home / 28,144.29-42,207.93-9,419.94

Finding the Fourth Proportional to 28,144.29, 42,207.93 and 9,419.94

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Solution

The fourth proportional to 28,144.29, 42,207.93 and 9,419.94 is: 14,127.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,144.29 : 42,207.93 = 9,419.94 : x
  2. Step 2: Convert to fraction form
    28,144.29/42,207.93 = 9,419.94/x
  3. Step 3: Cross multiply
    28,144.29x = 42,207.93 × 9,419.94
  4. Step 4: Simplify right side
    28,144.29x = 397,596,168.12
  5. Step 5: Solve for x
    x = 397,596,168.12/28,144.29
  6. Step 6: Final answer
    x = 14,127.06

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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.