Home / 28,373.94-42,563.34-11,730.78

Finding the Fourth Proportional to 28,373.94, 42,563.34 and 11,730.78

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Solution

The fourth proportional to 28,373.94, 42,563.34 and 11,730.78 is: 17,597.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,373.94 : 42,563.34 = 11,730.78 : x
  2. Step 2: Convert to fraction form
    28,373.94/42,563.34 = 11,730.78/x
  3. Step 3: Cross multiply
    28,373.94x = 42,563.34 × 11,730.78
  4. Step 4: Simplify right side
    28,373.94x = 499,301,177.61
  5. Step 5: Solve for x
    x = 499,301,177.61/28,373.94
  6. Step 6: Final answer
    x = 17,597.17

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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.