Home / 26,860.85-40,291.24-7,139.41

Finding the Fourth Proportional to 26,860.85, 40,291.24 and 7,139.41

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Solution

The fourth proportional to 26,860.85, 40,291.24 and 7,139.41 is: 10,709.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,860.85 : 40,291.24 = 7,139.41 : x
  2. Step 2: Convert to fraction form
    26,860.85/40,291.24 = 7,139.41/x
  3. Step 3: Cross multiply
    26,860.85x = 40,291.24 × 7,139.41
  4. Step 4: Simplify right side
    26,860.85x = 287,655,706.48
  5. Step 5: Solve for x
    x = 287,655,706.48/26,860.85
  6. Step 6: Final answer
    x = 10,709.10

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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.