Home / 31,260.48-43,153.55-19,945.19

Finding the Fourth Proportional to 31,260.48, 43,153.55 and 19,945.19

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Solution

The fourth proportional to 31,260.48, 43,153.55 and 19,945.19 is: 27,533.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,260.48 : 43,153.55 = 19,945.19 : x
  2. Step 2: Convert to fraction form
    31,260.48/43,153.55 = 19,945.19/x
  3. Step 3: Cross multiply
    31,260.48x = 43,153.55 × 19,945.19
  4. Step 4: Simplify right side
    31,260.48x = 860,705,438.43
  5. Step 5: Solve for x
    x = 860,705,438.43/31,260.48
  6. Step 6: Final answer
    x = 27,533.34

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1.5x scale

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.