Home / 28,061.38-42,116.68-11,421.36

Finding the Fourth Proportional to 28,061.38, 42,116.68 and 11,421.36

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Solution

The fourth proportional to 28,061.38, 42,116.68 and 11,421.36 is: 17,142.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,061.38 : 42,116.68 = 11,421.36 : x
  2. Step 2: Convert to fraction form
    28,061.38/42,116.68 = 11,421.36/x
  3. Step 3: Cross multiply
    28,061.38x = 42,116.68 × 11,421.36
  4. Step 4: Simplify right side
    28,061.38x = 481,029,764.28
  5. Step 5: Solve for x
    x = 481,029,764.28/28,061.38
  6. Step 6: Final answer
    x = 17,142.06

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1.5x scale

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.