Home / 40,903.12-61,356.05-11,318.47

Finding the Fourth Proportional to 40,903.12, 61,356.05 and 11,318.47

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Solution

The fourth proportional to 40,903.12, 61,356.05 and 11,318.47 is: 16,978.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,903.12 : 61,356.05 = 11,318.47 : x
  2. Step 2: Convert to fraction form
    40,903.12/61,356.05 = 11,318.47/x
  3. Step 3: Cross multiply
    40,903.12x = 61,356.05 × 11,318.47
  4. Step 4: Simplify right side
    40,903.12x = 694,456,611.24
  5. Step 5: Solve for x
    x = 694,456,611.24/40,903.12
  6. Step 6: Final answer
    x = 16,978.08

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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.