Home / 37,120.97-51,226.30-20,988.03

Finding the Fourth Proportional to 37,120.97, 51,226.30 and 20,988.03

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Solution

The fourth proportional to 37,120.97, 51,226.30 and 20,988.03 is: 28,963.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,120.97 : 51,226.30 = 20,988.03 : x
  2. Step 2: Convert to fraction form
    37,120.97/51,226.30 = 20,988.03/x
  3. Step 3: Cross multiply
    37,120.97x = 51,226.30 × 20,988.03
  4. Step 4: Simplify right side
    37,120.97x = 1,075,138,812.59
  5. Step 5: Solve for x
    x = 1,075,138,812.59/37,120.97
  6. Step 6: Final answer
    x = 28,963.12

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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.