Home / 26,290-39,433.56-10,720.72

Finding the Fourth Proportional to 26,290, 39,433.56 and 10,720.72

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Solution

The fourth proportional to 26,290, 39,433.56 and 10,720.72 is: 16,080.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,290 : 39,433.56 = 10,720.72 : x
  2. Step 2: Convert to fraction form
    26,290/39,433.56 = 10,720.72/x
  3. Step 3: Cross multiply
    26,290x = 39,433.56 × 10,720.72
  4. Step 4: Simplify right side
    26,290x = 422,756,155.36
  5. Step 5: Solve for x
    x = 422,756,155.36/26,290
  6. Step 6: Final answer
    x = 16,080.49

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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.