Home / 37,120.49-51,217.41-20,988.13

Finding the Fourth Proportional to 37,120.49, 51,217.41 and 20,988.13

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Solution

The fourth proportional to 37,120.49, 51,217.41 and 20,988.13 is: 28,958.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,120.49 : 51,217.41 = 20,988.13 : x
  2. Step 2: Convert to fraction form
    37,120.49/51,217.41 = 20,988.13/x
  3. Step 3: Cross multiply
    37,120.49x = 51,217.41 × 20,988.13
  4. Step 4: Simplify right side
    37,120.49x = 1,074,957,706.04
  5. Step 5: Solve for x
    x = 1,074,957,706.04/37,120.49
  6. Step 6: Final answer
    x = 28,958.60

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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.