Home / 26,560.16-39,830-10,761.28

Finding the Fourth Proportional to 26,560.16, 39,830 and 10,761.28

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Solution

The fourth proportional to 26,560.16, 39,830 and 10,761.28 is: 16,137.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,560.16 : 39,830 = 10,761.28 : x
  2. Step 2: Convert to fraction form
    26,560.16/39,830 = 10,761.28/x
  3. Step 3: Cross multiply
    26,560.16x = 39,830 × 10,761.28
  4. Step 4: Simplify right side
    26,560.16x = 428,621,782.40
  5. Step 5: Solve for x
    x = 428,621,782.40/26,560.16
  6. Step 6: Final answer
    x = 16,137.77

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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.