Home / 28,313.10-42,474.77-11,663.88

Finding the Fourth Proportional to 28,313.10, 42,474.77 and 11,663.88

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Solution

The fourth proportional to 28,313.10, 42,474.77 and 11,663.88 is: 17,497.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,313.10 : 42,474.77 = 11,663.88 : x
  2. Step 2: Convert to fraction form
    28,313.10/42,474.77 = 11,663.88/x
  3. Step 3: Cross multiply
    28,313.10x = 42,474.77 × 11,663.88
  4. Step 4: Simplify right side
    28,313.10x = 495,420,393.35
  5. Step 5: Solve for x
    x = 495,420,393.35/28,313.10
  6. Step 6: Final answer
    x = 17,497.92

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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.