Home / 27,880.68-38,474.73-15,133.89

Finding the Fourth Proportional to 27,880.68, 38,474.73 and 15,133.89

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Solution

The fourth proportional to 27,880.68, 38,474.73 and 15,133.89 is: 20,884.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,880.68 : 38,474.73 = 15,133.89 : x
  2. Step 2: Convert to fraction form
    27,880.68/38,474.73 = 15,133.89/x
  3. Step 3: Cross multiply
    27,880.68x = 38,474.73 × 15,133.89
  4. Step 4: Simplify right side
    27,880.68x = 582,272,331.60
  5. Step 5: Solve for x
    x = 582,272,331.60/27,880.68
  6. Step 6: Final answer
    x = 20,884.44

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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.