Home / 28,484.48-42,727.84-8,761.28

Finding the Fourth Proportional to 28,484.48, 42,727.84 and 8,761.28

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Solution

The fourth proportional to 28,484.48, 42,727.84 and 8,761.28 is: 13,142.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,484.48 : 42,727.84 = 8,761.28 : x
  2. Step 2: Convert to fraction form
    28,484.48/42,727.84 = 8,761.28/x
  3. Step 3: Cross multiply
    28,484.48x = 42,727.84 × 8,761.28
  4. Step 4: Simplify right side
    28,484.48x = 374,350,570.04
  5. Step 5: Solve for x
    x = 374,350,570.04/28,484.48
  6. Step 6: Final answer
    x = 13,142.26

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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.