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Finding the Fourth Proportional to 26,002.80, 35,880.84 and 15,392.88

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Solution

The fourth proportional to 26,002.80, 35,880.84 and 15,392.88 is: 21,240.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,002.80 : 35,880.84 = 15,392.88 : x
  2. Step 2: Convert to fraction form
    26,002.80/35,880.84 = 15,392.88/x
  3. Step 3: Cross multiply
    26,002.80x = 35,880.84 × 15,392.88
  4. Step 4: Simplify right side
    26,002.80x = 552,309,464.42
  5. Step 5: Solve for x
    x = 552,309,464.42/26,002.80
  6. Step 6: Final answer
    x = 21,240.38

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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.