Home / 20,688.44-31,008.35-9,571.64

Finding the Fourth Proportional to 20,688.44, 31,008.35 and 9,571.64

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Solution

The fourth proportional to 20,688.44, 31,008.35 and 9,571.64 is: 14,346.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,688.44 : 31,008.35 = 9,571.64 : x
  2. Step 2: Convert to fraction form
    20,688.44/31,008.35 = 9,571.64/x
  3. Step 3: Cross multiply
    20,688.44x = 31,008.35 × 9,571.64
  4. Step 4: Simplify right side
    20,688.44x = 296,800,560.29
  5. Step 5: Solve for x
    x = 296,800,560.29/20,688.44
  6. Step 6: Final answer
    x = 14,346.21

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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.