Home / 31,248.30-43,116-18,505.50

Finding the Fourth Proportional to 31,248.30, 43,116 and 18,505.50

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Solution

The fourth proportional to 31,248.30, 43,116 and 18,505.50 is: 25,533.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,248.30 : 43,116 = 18,505.50 : x
  2. Step 2: Convert to fraction form
    31,248.30/43,116 = 18,505.50/x
  3. Step 3: Cross multiply
    31,248.30x = 43,116 × 18,505.50
  4. Step 4: Simplify right side
    31,248.30x = 797,883,138
  5. Step 5: Solve for x
    x = 797,883,138/31,248.30
  6. Step 6: Final answer
    x = 25,533.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.