Home / 36,979.03-51,031.06-21,072.71

Finding the Fourth Proportional to 36,979.03, 51,031.06 and 21,072.71

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Solution

The fourth proportional to 36,979.03, 51,031.06 and 21,072.71 is: 29,080.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,979.03 : 51,031.06 = 21,072.71 : x
  2. Step 2: Convert to fraction form
    36,979.03/51,031.06 = 21,072.71/x
  3. Step 3: Cross multiply
    36,979.03x = 51,031.06 × 21,072.71
  4. Step 4: Simplify right side
    36,979.03x = 1,075,362,634.75
  5. Step 5: Solve for x
    x = 1,075,362,634.75/36,979.03
  6. Step 6: Final answer
    x = 29,080.34

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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.