Home / 37,290.35-51,449.09-21,155.00

Finding the Fourth Proportional to 37,290.35, 51,449.09 and 21,155.00

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Solution

The fourth proportional to 37,290.35, 51,449.09 and 21,155.00 is: 29,187.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,290.35 : 51,449.09 = 21,155.00 : x
  2. Step 2: Convert to fraction form
    37,290.35/51,449.09 = 21,155.00/x
  3. Step 3: Cross multiply
    37,290.35x = 51,449.09 × 21,155.00
  4. Step 4: Simplify right side
    37,290.35x = 1,088,405,135.93
  5. Step 5: Solve for x
    x = 1,088,405,135.93/37,290.35
  6. Step 6: Final answer
    x = 29,187.31

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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.