Home / 25,990.57-38,988.23-7,270.55

Finding the Fourth Proportional to 25,990.57, 38,988.23 and 7,270.55

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Solution

The fourth proportional to 25,990.57, 38,988.23 and 7,270.55 is: 10,906.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,990.57 : 38,988.23 = 7,270.55 : x
  2. Step 2: Convert to fraction form
    25,990.57/38,988.23 = 7,270.55/x
  3. Step 3: Cross multiply
    25,990.57x = 38,988.23 × 7,270.55
  4. Step 4: Simplify right side
    25,990.57x = 283,465,993.36
  5. Step 5: Solve for x
    x = 283,465,993.36/25,990.57
  6. Step 6: Final answer
    x = 10,906.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.