Home / 27,880.20-38,475.36-15,133.35

Finding the Fourth Proportional to 27,880.20, 38,475.36 and 15,133.35

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Solution

The fourth proportional to 27,880.20, 38,475.36 and 15,133.35 is: 20,884.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,880.20 : 38,475.36 = 15,133.35 : x
  2. Step 2: Convert to fraction form
    27,880.20/38,475.36 = 15,133.35/x
  3. Step 3: Cross multiply
    27,880.20x = 38,475.36 × 15,133.35
  4. Step 4: Simplify right side
    27,880.20x = 582,261,320.94
  5. Step 5: Solve for x
    x = 582,261,320.94/27,880.20
  6. Step 6: Final answer
    x = 20,884.40

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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.