Home / 37,062.80-51,141-21,148.40

Finding the Fourth Proportional to 37,062.80, 51,141 and 21,148.40

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Solution

The fourth proportional to 37,062.80, 51,141 and 21,148.40 is: 29,181.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,062.80 : 51,141 = 21,148.40 : x
  2. Step 2: Convert to fraction form
    37,062.80/51,141 = 21,148.40/x
  3. Step 3: Cross multiply
    37,062.80x = 51,141 × 21,148.40
  4. Step 4: Simplify right side
    37,062.80x = 1,081,550,324.40
  5. Step 5: Solve for x
    x = 1,081,550,324.40/37,062.80
  6. Step 6: Final answer
    x = 29,181.56

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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.