Home / 28,663.88-42,998.56-11,135.08

Finding the Fourth Proportional to 28,663.88, 42,998.56 and 11,135.08

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Solution

The fourth proportional to 28,663.88, 42,998.56 and 11,135.08 is: 16,703.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,663.88 : 42,998.56 = 11,135.08 : x
  2. Step 2: Convert to fraction form
    28,663.88/42,998.56 = 11,135.08/x
  3. Step 3: Cross multiply
    28,663.88x = 42,998.56 × 11,135.08
  4. Step 4: Simplify right side
    28,663.88x = 478,792,405.48
  5. Step 5: Solve for x
    x = 478,792,405.48/28,663.88
  6. Step 6: Final answer
    x = 16,703.68

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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.