Home / 36,987.49-51,042.75-19,991.70

Finding the Fourth Proportional to 36,987.49, 51,042.75 and 19,991.70

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Solution

The fourth proportional to 36,987.49, 51,042.75 and 19,991.70 is: 27,588.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,987.49 : 51,042.75 = 19,991.70 : x
  2. Step 2: Convert to fraction form
    36,987.49/51,042.75 = 19,991.70/x
  3. Step 3: Cross multiply
    36,987.49x = 51,042.75 × 19,991.70
  4. Step 4: Simplify right side
    36,987.49x = 1,020,431,345.18
  5. Step 5: Solve for x
    x = 1,020,431,345.18/36,987.49
  6. Step 6: Final answer
    x = 27,588.55

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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.