Home / 26,143.20-39,205.08-10,555.56

Finding the Fourth Proportional to 26,143.20, 39,205.08 and 10,555.56

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Solution

The fourth proportional to 26,143.20, 39,205.08 and 10,555.56 is: 15,829.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,143.20 : 39,205.08 = 10,555.56 : x
  2. Step 2: Convert to fraction form
    26,143.20/39,205.08 = 10,555.56/x
  3. Step 3: Cross multiply
    26,143.20x = 39,205.08 × 10,555.56
  4. Step 4: Simplify right side
    26,143.20x = 413,831,574.24
  5. Step 5: Solve for x
    x = 413,831,574.24/26,143.20
  6. Step 6: Final answer
    x = 15,829.42

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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.