Home / 20,860.17-31,268.39-9,757.50

Finding the Fourth Proportional to 20,860.17, 31,268.39 and 9,757.50

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Solution

The fourth proportional to 20,860.17, 31,268.39 and 9,757.50 is: 14,626.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,860.17 : 31,268.39 = 9,757.50 : x
  2. Step 2: Convert to fraction form
    20,860.17/31,268.39 = 9,757.50/x
  3. Step 3: Cross multiply
    20,860.17x = 31,268.39 × 9,757.50
  4. Step 4: Simplify right side
    20,860.17x = 305,101,266.64
  5. Step 5: Solve for x
    x = 305,101,266.64/20,860.17
  6. Step 6: Final answer
    x = 14,626.02

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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.