Home / 26,011.20-39,002.40-10,411.20

Finding the Fourth Proportional to 26,011.20, 39,002.40 and 10,411.20

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Solution

The fourth proportional to 26,011.20, 39,002.40 and 10,411.20 is: 15,611.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,011.20 : 39,002.40 = 10,411.20 : x
  2. Step 2: Convert to fraction form
    26,011.20/39,002.40 = 10,411.20/x
  3. Step 3: Cross multiply
    26,011.20x = 39,002.40 × 10,411.20
  4. Step 4: Simplify right side
    26,011.20x = 406,061,786.88
  5. Step 5: Solve for x
    x = 406,061,786.88/26,011.20
  6. Step 6: Final answer
    x = 15,611.04

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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.