Home / 26,620.80-39,931.56-9,090.24

Finding the Fourth Proportional to 26,620.80, 39,931.56 and 9,090.24

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Solution

The fourth proportional to 26,620.80, 39,931.56 and 9,090.24 is: 13,635.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,620.80 : 39,931.56 = 9,090.24 : x
  2. Step 2: Convert to fraction form
    26,620.80/39,931.56 = 9,090.24/x
  3. Step 3: Cross multiply
    26,620.80x = 39,931.56 × 9,090.24
  4. Step 4: Simplify right side
    26,620.80x = 362,987,463.97
  5. Step 5: Solve for x
    x = 362,987,463.97/26,620.80
  6. Step 6: Final answer
    x = 13,635.48

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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.