Home / 26,730.84-40,069.80-12,666

Finding the Fourth Proportional to 26,730.84, 40,069.80 and 12,666

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Solution

The fourth proportional to 26,730.84, 40,069.80 and 12,666 is: 18,986.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,730.84 : 40,069.80 = 12,666 : x
  2. Step 2: Convert to fraction form
    26,730.84/40,069.80 = 12,666/x
  3. Step 3: Cross multiply
    26,730.84x = 40,069.80 × 12,666
  4. Step 4: Simplify right side
    26,730.84x = 507,524,086.80
  5. Step 5: Solve for x
    x = 507,524,086.80/26,730.84
  6. Step 6: Final answer
    x = 18,986.46

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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.